cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mimiocurus camerunus
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Mimiocurus
Mimiocurus camerunus

description: Mimiocurus camerunus (Hagedorn, 1909)
Araptus camerunus Hagedorn, 1909: 743, orig. spelling
Pseudomicracis camerunus (Hagedorn, 1909), combination by Wood and Bright, 1992
Type material. Holotype: Kamerun, leg. Conradt. Holotype lost (Hamburg), not examined.
Diagnosis (transcribed, inferred). Body length 3.5 mm, colour light shiny brown, vestiture of mixed shorter and longer setae. Antennal scapus as long as funiculus and club combined, with scant setae; club without sutures. Pronotum narrowly rounded in front, subconical, sides carinate, anteriorly rugose with rough asperities, on posterior part with sparse, deep punctures. Elytra with striae distinctly punctured, declivity steep, with several distinct round spines, posterior margin elevated, suture inside heavily punctured. Protibiae broad, lateral edge evenly curved, with three lateral denticles.
Distribution. Cameroon.
Remarks. The type was lost during the World War II bombing of Hamburg and no other material is known (Wood and Bright 1992). It will therefore likely remain as a ghost species for all future studies. However, the illustration of the antenna and protibia (Hagedorn, 1909) refute any association with Micracidini.
The description is very poor on details. Except for the rather large size, it is notable for its rounded spines on the declivity and it has an elevated rim along the posterior margin of the elytra. The antennal scapus is elongated and the club is without sutures (Hagedorn, 1909: figure 42; reprinted in Schedl, 1962). The protibiae are laterally broadly rounded, with three presumably socketed denticles along its margin (Hagedorn 1909: figure 43). These three features are similar in shape to some species of Mimiocurus, especially the type species M. acuminatus Schedl, 1957 and related species. It is also possible that M. camerunus is related to a species group in Acanthotomicus Blandford, 1894 where the antennal club bear few traces of sutures and where some species have only a few rounded spines on the declivity. However, Hagedorn was sufficiently familiar with Mimips Eggers, 1932 (the more frequently used named at that time) to know the difference.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 327, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis elsae Eggers 1920
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis elsae

description: Pseudomicracis elsae Eggers, 1920
Pseudomicracis elsae Eggers 1920: 36, orig. spelling
Type material. Holotype, female: Dar-es-Salaam, Ostafrika [Tanzania]. Holotype lost (Hamburg), not examined.
Diagnosis (transcribed). Length 1.5 mm. Frons impressed between eyes; scapus triangular with a long tuft of setae; club broad with two weakly procurved sutures. Elytral striae not impressed, interstriae with rows of erect fine setae; declivity steep, apex mucronate. Legs widen apically, with three or four small denticles at the outer apical edge.
Distribution. Tanzania.
Remarks. The loss of the type (Hamburg Museum, WWII) and no other verified material makes it difficult to assess the correct position in micracidine classification. In the absence of evidence to the contrary, it is prudent to maintain taxonomic stability by the application of a diagnosis that embrace the Malagasy species related to P. madagascariensis (Schedl, 1961) as did Wood (1986). It is apparent from studies on closely related genera in the flagellum clade that all these have a southern African and Malagasy distribution; the occurrence of a single African species in Pseudomicracis will therefore not be evidence to the contrary.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 330, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis verrucosa Jordal 2022, sp. nov.
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis verrucosa

description: Pseudomicracis verrucosa Jordal, sp. nov.
(Figs 2, 5, 8)
urn:lsid:zoobank.org:act: 70419563-38E7-436B-A4D4-FC9A497A73DA
Type material. Holotype, male: Madagascar, Fianarantsoa, Ranomafana, Vato trail, GIS: -21.29, 47.42, alt. 1100 m, ex unknown branch, 5.x.2012, B. Jordal, leg. Paratype, male: same data as HT. Types deposited in ZMUB.
Diagnosis, male. Elytral interstriae strongly tuberculate; interstrial setae long, spatulate, and curved.
Description, male. Length 1.4–1.5 mm long, 2.2–2.4 × as long as wide; colour black. Frons weakly convex, finely reticulate, nearly glabrous except a fine triangular brush of setae on epistoma. Antennal scapus rounded, with few, short setae; club with two strongly procurved sutures, segment one smooth and shiny, about half the length of club. Eyes separated above by 3.0–3.1 × their width. Pronotum large, about 1.1 × as long as wide, 1.5 × as long as elytra; surface strongly asperate on anterior two-thirds, 4–6 fine granules along anterior margin; posterior third rugose-punctate. Elytral interstriae strongly granulate or tuberculate, setae curved and spatulate, about 4–6 × as long as wide; strial punctures coarse, with fine curved and lightly raised setae about half the length of interstrial setae. Protibiae with one lateral and two apical short socketed denticles.
Female. Not known.
Etymology. The Latin nominative (female) adjective verrucosa means warty, referring to the strongly tuberculated elytra of this species.
Distribution and biology. Madagascar. Only known from the type locality in Ranomafana where two dead specimens were dissected from a thin old branch.
Remarks. This is a unique species in the genus in having a distinctly tuberculate elytra. Although the two type specimens are in comparatively poor condition, the very striking appearance allows unambiguous recognition of the species.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 330, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis madagascariensis
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis madagascariensis

description: Pseudomicracis madagascariensis (Schedl, 1961)
(Figs 11, 12, 14, 15, 17, 18)
Micracis madagascariensis Schedl, 1961: 139, orig. spelling
Pseudomicracis madagascariensis (Schedl, 1961), combination by Wood 1984
Type material. Holotype, female: Madagascar, Perinet, 15.xi.1952, Dr K.E. Schedl, leg. [MNHN]. Allotype, male, and paratypes: same data as HT [MNHN, NHMW].
Diagnosis. Length 1.1–1.3 mm; color dark reddish brown to black; eyes separated above by 2.9–3.1 × their width; female frons concave, with a broad projecting tuft of setae along the dorsal margin of impression; scapus with dense tuft of plumose setae longer than the club; elytral disc and declivity lightly rugose (females) to distinctly granulated (males).
Distribution and biology. Madagascar. Previously only known from the type locality where it was dissected from 4–5 cm thick branches of an unknown host plant (Schedl 1977). Two females per male made longitudinal egg tunnels, presumably in opposite directions.
New records. Madagascar: Sambava distr., Marojejy National Park, 700 m alt., vittatol baited FIT, 27. Oct. 2019, B. Jordal, leg. [8 specimens, ZMUB].
Remarks. Specimens from the type series in Andasibe (Perinet; Figs 14, 17) are lighter in colour than those reported here from Marojejy (Figs 15, 18). Colour generally darkens just before the stage of flight as this is part of the final maturation process.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 331, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis difficilis
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis difficilis

description: Pseudomicracis difficilis (Schedl, 1965)
(Figs 13, 16, 19)
Micracis difficilis Schedl, 1965: 64
Type material. Holotype, female, and allotype, male: Madagascar, Perinet, 16.xi,1952, im flug, K.E. Schedl [NHMW].
Diagnosis. Length 1.5–1.7 mm; female frons flat, smooth, shiny, with scant setae; scapus triangular to slightly falcate, with small dorsal tuft of setae; eyes separated above by 2.5–2.7 × their width; pronotal and elytral disc smooth and shiny; interstriae with rows of erect and narrowly spatulate setae mainly restricted to declivity.
Distribution and biology. Madagascar. Breeds under bark of very dry Cryptocarya branches. One brood was recorded, consisting of seven pupae and one adult specimen.
New records. Madagascar, Fianarantsoa, Ranomafana National Park, ex Cryptocarya branch, 5. October 2012, B. Jordal, leg. [2 specimens, ZMUB].
Remarks. Rather similar to males of P. vitrioculata sp. nov., but is clearly distinguished from the latter by the much smaller eyes.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on pages 331-333, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis vitrioculata Jordal 2022, sp. nov.
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis vitrioculata

description: Pseudomicracis vitrioculata Jordal, sp. nov.
(Figs 20, 23, 26)
urn:lsid:zoobank.org:act: DCA1B970-91F7-45EA-8504-C3B3C5253361
Type material. Holotype, male: Madagascar, Fianarantsoa, Ranomafana National Park, ex Cryptocarya branch, 28. September 2012, B. Jordal, leg. Paratype (1): same data as holotype. Holo- and paratype are deposited in ZMUB.
Diagnosis. Eyes large, glassy, separated above by 1.2–1.3 × their width; male interstriae 1 and 7–9 with confused rows of truncated setae on (or near) declivity.
Description, male. Length 1.2–1.3 mm, 2.7–2.8 × as long as wide; color yellowish to reddish brown (not fully mature). Frons flat, smooth, nearly glabrous; antennal scapus short, rounded, tuft of setae shorter than length of club; club with two strongly procurved sutures, basal segment shiny. Eyes glassy, large, separated above by 1.2–1.3 × their width. Pronotum asperate on anterior half, asperities scattered and small near anterior margin. Elytral interstriae 2–6, mainly on declivity, with uniseriate rows of truncated setae, interstriae 1 and in part 7–9 with multiple confused rows; surface smooth on disc, finely granulated on declivity. Protibiae with one lateral and two apical tiny denticles.
Etymology. Composed by the feminine nominative adjective oculata, meaning possession of eyes, and the genitive form of vitrium, meaning glass, referring to the large and bright eyes of this species.
Distribution and biology. Madagascar. Only known from the type locality, breeding in the bark of a Cryptocarya branch, 3 cm in diameter.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 333, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis pilosa Jordal 2022, sp. nov.
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis pilosa

description: Pseudomicracis pilosa Jordal, sp. nov.
(Figs 21, 22, 24, 25, 27, 28)
urn:lsid:zoobank.org:act: EFAC357A-ADC9-4412-9F02-6094C6144517
Type material. Holotype, female: Madagascar, Fianarantsoa, Ranomafana, Centre ValBio [-21.25, 47.42] alt. 950 m, ex Ocotea branch, 30.ix.2012, B. Jordal, leg. Paratypes: same data as holotype (2); same data as holotype except ex Cryptocarya branch (3); same data as holotype except 3.x.2012 (allotype male and 3 paratypes). Holotype, allotype and four paratypes deposited in ZMUB, four paratypes in NHMW.
Diagnosis. Basal segment of antennal club about one-quarter the length of club; strial setae white, comparatively broad, about one-third as wide as interstrial setae, in part confused within rows; pronotal setae similar to strial setae, densely placed.
Description, female. Length 1.2–1.6 mm, 2.7–3.0 × as long as wide; colour brown to very dark brown. Frons flattened, shiny, impunctate, vestiture consisting of very short, fine setae mainly along the lateral and upper part of frons, Antennal scapus broadly triangular, nearly spike-like dorsally, with broad tuft of setae slightly longer than length of club; antennal club with two procurved sutures, basal segment short, about one-quarter the length of club. Eyes large, separated above by 1.3–1.7 × their width. Pronotum asperate on anterior half, vestiture of white coarse setae. Elytral interstriae smooth, with uniseriate rows of narrowly spatulate or bristle-like setae, strial punctures small, setae white, comparatively broad, in part confused. Protibiae with one lateral and two apical denticles along outer margin.
Male similar to female except scapus rounded with few setae, anterior margin of pronotum with 4–6 raised teeth, interstrial setae almost as broad as long, truncated.
Etymology. The Latin feminine nominative adjective pilosa, meaning hairy, refers to the densely set rows of setae from elytral base to apex, the relatively thick and visible strial setae, and the dense setae of the pronotum.
Distribution and biology. Madagascar. Only known from three nearby locations in Ranomafana. It was collected from thin branches of Ocotea and Cryptocarya (both in Lauraceae). Each male was joined by exactly two females (n=5), where females made longitudinal egg tunnels in the bark (not the phloem).
Remarks. This species appears to be much more setose than most other species in the genus, except those in the Saurotocis group. It shares with P. vitrioculata the relatively large eyes but is distinguished from that species particularly by the short basal segment of the antennal club, and its generally setose appearance.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on pages 333-336, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis lauricola Jordal 2022, sp. nov.
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis lauricola

description: Pseudomicracis lauricola Jordal, sp. nov.
(Figs 29, 31, 33, 34)
urn:lsid:zoobank.org:act: A85CF4EF-CC24-43FD-AB33-61A1E205ED5A
Type material. Holotype, female: Madagascar, Diana region, Montagne d’Ambre Nat. Park, 800 m alt., GIS: - 12.54, 49.17, Ex. Ocotea branch, 1.xi.2019, J. Eliassen, leg. Allotype, male: same data as holotype, except ex old branch, B. Jordal leg. Paratypes: same data as allotype (2); same data as allotype, except ex. Cryptocarya branch, 3.xi.2019 (4); same data as holotype (2). Holotype, allotype and four paratypes deposited in ZMUB, four paratypes in NHMW.
Diagnosis. Basal segment of the antennal club only one-quarter of total length of club; female scapus spikelike, with strongly plumose, long setae; male frons rugose-punctate, distinctly impressed just above epistoma; male pronotum serrated along central anterior margin.
Description, female. Length 1.2–1.4 mm, 2.7–3.0 × as long as wide; colour brown. Frons flattened or slightly impressed longitudinally on central third, smooth to finely granulated, rugose-punctate above, vestiture consisting of rather densely placed, fine recumbent setae. Antennal scapus triangularly elongated into a dorsal spike, in front with long plumose setae; antennal club with two procurved sutures, basal segment about one-quarter the length of the club. Eyes separated above by 2.5 × their width. Pronotum asperate on anterior half, asperities denser near anterior margin and the summit, more scattered in the middle declivous part and absent along anterior margin; smooth and very finely punctuated on posterior half; setae scant, bristle-like. Elytral interstriae smooth, with uniseriate rows of narrowly spatulate setae from base to apex; strial punctures shallow, with fine recumbent setae separated by their length. Protibiae with one lateral and two apical denticles.
Etymology. Composed by the stem of Laurus, the laurel tree, with the connecting vowel -i, and the suffix -cola, meaning inhabitor, referring to a preference for host trees in the plant family Lauraceae.
Distribution and biology. Madagascar. Only known from the northern tip of the island where it was repeatedly collected from the bark of small branches fallen from Cryptocarya and Ocotea trees (Lauraceae).
Remarks. A rather featureless species which is morphologically most similar to P. pilosa and P. atra sp. nov. having a small basal segment of the antennal club, and serrated anterior margin of the male pronotum. However, it has uniseriate rows of interstrial setae reaching basal margin of the elytra.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 336, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis atra Jordal 2022, sp. nov.
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis atra

description: Pseudomicracis atra Jordal, sp. nov.
(Figs 30, 32, 35)
urn:lsid:zoobank.org:act: 88EE5F59-DB41-46C7-BAE5-933E87F034FF
Type material. Holotype, male: Madagascar, Fianarantsoa, Ranomafana, Valo [-21.31, 47.43] alt. 1100 m, ex Cryptocarya twig, 6.x.2012, B. Jordal, leg. Paratypes, males (4): same data as holotype. Holotype and two paratypes deposited in ZMUB, two paratypes in NHMW.
Diagnosis. Anterior half of pronotum sharply asperate, in males with distinctly raised teeth along its anterior margin; color black; interstrial setae mainly on declivity, densely placed in uniseriate rows.
Description, male. Length 1.2–1.3 mm, 2.6–2.7 × as long as wide; colour black. Frons convex, with an obscure transverse tubercle just above epistoma, surface strongly reticulate, with scant, short setae. Antennal scapus short and round, with few setae shorter than club; antennal club with two nearly angularly procurved sutures, basal segment less than one-third the length of the club. Pronotum sharply asperate on anterior half, anterior margin with 4–6 distinct teeth; posterior half finely granulate and strongly reticulate, with scant hair-like setae. Elytral interstriae smooth, with spatulate erect setae in rows mainly on declivity; striae obscure, strial setae very fine, recumbent, slightly raised on declivity. Protibiae with one lateral and two apical denticles.
Etymology. The Latin nominative adjective atra, meaning (dull) black, refers to the dark colour of this species.
Distribution and biology. Madagascar. Only known from the type locality, collected from a thin twig of Cryptocarya (Lauraceae), 1 cm in diameter.
Remarks. Only males were collected which seems unusual for micracidine beetles, but is most likely an incidental event.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on pages 336-337, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis tomicoides
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis tomicoides

description: Pseudomicracis tomicoides (Schedl, 1961)
(Figs 36, 39, 42, 45, 48, 51)
Micracidendron tomicoides Schedl, 1961: 141
Saurotocis tomicoides (Schedl, 1961), combination by Wood (1984)
Pseudomicracis tomicoides (Schedl, 1961), combination by Jordal (2021c)
Type material. Holotype, female: Madagascar, Perinet, 23.xi.1952, Dr K.E. Schedl [MNHN]. Allotype male and paratypes: same data as holotype [MNHN, NHMW].
Diagnosis. Length 2.6–2.9 mm, 2.3–2.5 × as long as wide. Antennal club almost three times as long as wide, sutures not evident, basal segment shiny, very short; male declivity impressed, demarcated on each side by 5–7 large tubercles; posterior margin of elytra with a distinct rim; interstriae with densely placed and strongly confused setae; female frons with dense, long, soft setae; antennal scapus short, with a very long and thin dorsal spike with long setae longer than spike.
Distribution and biology. Madagascar. Only known from the type locality where it was dissected from Ocotea cymosa and O. laens (Lauraceae) branches about 4–5 cm diameter (Schedl 1977). One male may accept one, two or three females, copulate with these just inside the entrance, and each female excavate longitudinal egg tunnels in the phloem.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 338, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Pseudomicracis dispar
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudomicracis
Pseudomicracis dispar

description: Pseudomicracis dispar (Schedl, 1961)
(Figs 37, 40, 43, 46, 49, 52)
Micracidendron dispar Schedl, 1961: 142, orig. spelling
Saurotocis dispar (Schedl, 1961), combination by Wood (1984)
Pseudomicracis dispar (Schedl, 1961), combination by Jordal (2021c)
Type material. Holotype, female: Madagascar, Perinet et Betsatsakry près Perinet, 17 nov. 1952, K.E. Schedl [MNHN]. Allotype and paratypes: same data as holotype [MNHN, NHMW].
Diagnosis. Length 1.7–2.3 mm, 2.2–2.6 × as long as wide.Antennal club twice as long as wide, sutures obscure, basal segment subcorneous, elongated; male declivity impressed, demarcated laterally by 5–6 curled tubercles, 2 or 3 of these much larger than others; interstrial setae short, as long as wide, spatulate to truncated, densely placed and broadly confused; female declivity rounded, interstrial setae in uniseriate rows.
Distribution and biology. Madagascar. Previously known only from Andasibe (Perinet) where it was dissected from Ocotea cymosa branches sitting on a felled tree (Schedl 1977). Two females joined one male, with each female tunnelling in opposite directions along the grain of the phloem and inner bark. The several new records from Ranomafana were all made together with P. pilosa sp. nov., in small branches of various Lauraceae trees.
New records. Madagascar, Fianarantsoa, Ranomafana, Centre ValBio [-21.25, 47.42] alt. 950 m, ex Ocotea branch, 30.ix.2012, B. Jordal, leg. (3); same data except ex Cryptocarya branch (1); same data as holotype except 3.x.2012 (3). All specimens in ZMUB.
Remarks. As indicated by the molecular data this species is closely related to P. pilosa sp. nov. The females of the two species are very similar except P. dispar is much larger. Based on male characters, however, particularly on the declivity, and the stout shape of the females, it is expected that P. tomicoides and P. pennata (Schedl, 1965) are also members of this clade.
description: Published as part of Jordal, Bjarte H., 2022, The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision, pp. 325-343 in Zootaxa 5125 (3) on page 338, DOI: 10.11646/zootaxa.5125.3.5, http://zenodo.org/record/6443876
Eurypogon Motschulsky 1859
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon

description: Genus Eurypogon Motschulsky, 1860
Eurypogon Motschulsky, 1860: 358 /363.
Type species: Ochina nigra Melsheimer, 1845, by monotypy.
= Dasypogon LeConte, 1861: 178 [unavailable name, incorrect subsequent spelling of Eurypogon].
= Sclerodes Westwood, 1862: 373. Type species: Sclerodes harrisii Westwood, 1862, by monotypy. Synonymy by LeConte (1864: XVIII).
= Pseudodactylus Hampe, 1867: 374. Type species: Pseudodactylus cribratus Hampe, 1867, by monotypy. Synonymy by Lawrence (1995: 428).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 452, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon heishuiensis Kundrata, Bocakova & Bocak 2013
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon heishuiensis

description: Eurypogon heishuiensis Kundrata, Bocakova & Bocak, 2013
(Fig. 1C)
Eurypogon heishuiensis Kundrata, Bocakova & Bocak, 2013: 207.
Type locality. China, Yunnan Province, 35 km N of Lijiang, Heishui village, ca. 27°13′N, 100°19′E.
Type material. Holotype female (NHMW), labeled: “ China Yunnan, 1.–19.VII., HEISHUI, 35 km N Lijiang, 27°13’N 100°19’E, E. Jendek leg. 1992”.
Diagnosis. This species can be recognized based on the following combination of characters: head and pronotum (Fig. 1C) blackish, elytra metallic green, pronotum with distinctly concave sides and prominent posterior angles; punctures on head and pronotum small and sparse (Kundrata et al. 2013).
Distribution. This species is so far known only from the type locality in Yulong Xueshan massif, northern Yunnan, China (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 460, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon jaechi Kundrata, Bocakova & Bocak 2013
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon jaechi

description: Eurypogon jaechi Kundrata, Bocakova & Bocak, 2013
(Fig. 1D)
Eurypogon jaechi Kundrata, Bocakova & Bocak, 2013: 207.
Type locality. China, Yunnan Province, 35 km N of Lijiang, Heishui village, ca. 27°13′N, 100°19′E.
Type material. Holotype female (NHMW), labeled: “ China Yunnan, 1.–19.VII., HEISHUI, 35 km N Lijiang, 27°13’N 100°19’E, E. Jendek leg. 1992”.
Diagnosis. This species can be recognized based on the following combination of characters: head and pronotum (Fig. 1D) blackish, elytra dull metallic green or blue, pronotum with slightly concave sides and less prominent posterior angles, and punctures on head and pronotum large and dense (Kundrata et al. 2013; Yoshitomi 2018).
Sexual dimorphism and variability. Females are distinctly more robust than males, with antennae and elytra relatively shorter. Both males and females have elytral coloration from dull metallic green (Fig. 1D) to metallic blue, and especially males can differ in the body proportions, being either distinctly narrow or wider, with the ratio of the combined length of pronotum + elytra to the maximal elytral width varying between 2.35 and 2.82. For more details, see Yoshitomi (2018).
Distribution. This species is so far known only from several mountainous localities in northern Yunnan, China (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 460, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon sanzang Wang & Liu 2021
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon sanzang

description: Eurypogon sanzang Wang & Liu, 2021
(Figs 3A, B; 8A; 10D; 12D)
Eurypogon sanzang Wang & Liu, 2021: 39.
Type locality. China, Henan province, Nanyang City, Neixiang County, Baotianman Nature Reserve, 33°29′33″N 111°55′48″E.
Type material. Holotype male (MYNU), labeled: “ China: Henan: Nanyang City, Neixiang County, Baotianman Nature Reserve, N33°29’33” E111°55’48”, 1310 m, 2.V.2020, light trap, Hao-Yi Liu leg.”.
Additional material examined. See all specimens reported in Packova et al. (2023).
Diagnosis. This species can be recognized based on the following combination of characters: body (Fig. 3A,B) elongate and narrow; head, pronotum, and elytra (Figs 3A,B; 8A) more or less uniformly dark brown to blackish; male elytra 2.30–2.55 times as long as wide; female elytra about 2.10 times as long as wide; elytral surface (Fig. 10D) rather smooth; aedeagus (Fig. 12D) with U-shaped phallobase.
Sexual dimorphism and variability. See detailed information in Packova et al. (2023).
Distribution. Eurypogon sanzang seems to be relatively widespread across Qinling Shan mountain range in southern Shaanxi and continuing mountains in western Henan, China (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 472, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon schuhi Packova & Kundrata 2023
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon schuhi

description: Eurypogon schuhi Packova & Kundrata, 2023
(Figs 3C, 8B, 10E, 12E)
Eurypogon schuhi Packova & Kundrata in Packova et al., 2023: 9.
Type locality. China, Hubei province, Dalaoshan [*̓ẇ], 31°03′N 110°57′E.
Type material. Holotype male (NHMW), labeled: “ China, W Hubei, 9.–10. VI. 2004, Dalaoshan forest park, 31.05N 110.95E, Jaroslav Turna leg.“.
Diagnosis. This species can be recognized based on the following combination of characters: head, pronotum, and elytra (Figs 3C, 8B) more or less uniformly dark brown to blackish; male elytra 2.2 times as long as wide; elytral surface (Fig. 10E) relatively rough, elytral punctures coarse, moderately large, intervals between elytral punctures within single row usually 1.0–2.0 times puncture diameter; intervals between elytral punctures of different rows usually about 2.0–3.0 puncture diameter; aedeagus (Fig. 12E) without U-shaped phallobase, parameres relatively long, reaching about the place where median lobe is abruptly narrowed subapically.
Distribution. This species is so far known only from the single specimen collected in Dalaoshan Forest Park, western Hubei, China (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 472, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
title: The role of anticyclonic transient eddies in atmospheric blocking dynamics
Creators: name: Suitters, Charlie
Publisher: name: University of Reading
Year: 2024

description: Atmospheric blocks are large, quasi-stationary anticyclones with a lifetime from
several days to multiple weeks. While blocks are relatively common in mid�latitudes, their dynamics are not completely understood, contributing to their un�predictability in medium-range numerical weather prediction (NWP). This study
quantifies the role of anticyclonic (AC) synoptic-scale eddies towards blocking
through a combined Eulerian and Lagrangian technique for block and AC eddy
identification, respectively.
It is shown for the first time that there is a statistically significant relationship
between the mean number of block-AC eddy interactions and block persistence.
Longer blocks absorb more AC eddies than shorter blocks, due to the associated
increase in area and/or strength of the block after an AC eddy-block interac�tion, preventing dissipation or downstream advection of the block. However, for
blocks with a particular persistence, there is large variability around the mean in
the number of AC eddies it absorbs.
In analysis of three blocks with similar persistence but different numbers of
AC eddy interactions, AC eddies are only important towards the PV budget of
a block when they first enter. Furthermore, the relative importance of diabatic
processes varies spatially and temporally in each block, but there is no robust
relationship between the relative importance of diabatic processes and AC eddies
towards blocking dynamics.
Accurate forecasts of block-AC eddy interactions are shown to be important
for accurate blocking forecasts in medium-range NWP. Forecast errors in AC
eddy speed, size, or strength can result in errors in block size, position, strength,
or persistence. Conversely, forecasts that better represent AC eddies are more
accurate in their forecasts of blocking.
These results help to further the understanding of the role of AC eddies to�wards blocking dynamics, and show that poor AC eddy representation is one of
the key reasons medium-range NWP performs so poorly for blocking.
Eurypogon granulatus Sakai 1982
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon granulatus

description: Eurypogon granulatus Sakai, 1982
(Figs 4A, B; 8D, E; 10G, H; 12G)
Eurypogon granulatus Sakai, 1982: 57.
Type locality. “Tsuifen, Nantou Hsien, Central Taiwan ” [Taiwan, Nantou County, Tsuifeng, ca. 24°06′N 121°12′E].
Type material. Holotype male (EUMJ), labeled: “ Tsuifen, Nantou-Hsien, FORMOSA, 4 v 1979, S.TSUYUKI leg.” // “ Holotype Eurypogon granulatus Sakai 1982 ”. Four paratypes [not studied by us]: two males, two females (EUMJ).
Additional material examined. TAIWAN: NANTOU: 1 male, Tsuifeng, 25.IV.1999, Y.-Y. Lien leg. (NMPC). TAICHUNG: 1 female, Tashüehshan Mts., Anmashan, 2230 m, 15. VI.1989, M. Satô leg. (NMPC).
Diagnosis. This species can be easily recognized based on the distinctly granulated rough surface of interstices between puncture rows on elytra (Fig. 10G, H), relatively large elytral punctures, and slender, relatively thin median lobe (Figs 12G).
Sexual dimorphism and variability. Males are relatively narrower and more elongate than females, being about 2.8 times as long as wide (excluding head), while females are more robust, being about 2.4 times as long as wide (excluding head; Fig. 4A, B). Males have longer and more serrate antennae, and less robust and relatively slightly shorter pronotum (Fig. 8D, E). For more information, see Sakai (1982). We found the difference between a male and a female in the relative size of punctures on elytra (Fig. 10G, H); however, more specimens of both sexes should be studied to understand if this is a sexual dimorphism or intraspecific variability.
Distribution. This species is endemic to Taiwan, being known from several mountainous localities across the island (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 474, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon brevipennis Sakai 1982
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon brevipennis

description: Eurypogon brevipennis Sakai, 1982
(Figs 4C, 8F, 10I)
Eurypogon brevipennis Sakai, 1982: 59.
Type locality. “Omogokei, Ehime Pref. ” [Japan, Shikoku, Ehime Prefecture, Omogokei Gorge, ca. 33°44′N 133°06′E].
Type material. Holotype male (EUMJ), labeled: “(SHIKOKU), Omogo-Kei, 10. VIII. 1959, M. SAKAI leg.” // “ Holotype Eurypogon brevipennis SAKAI 1982 ”. One paratype [not studied by us], female (EUMJ).
Additional material examined. JAPAN: HONSHU: 1 female, Mie Prefecture, Myojindake, 22. VI.1993, H. Kawase leg. (NMPC); 1 female, Iwate Pref., Hachimantai, Ashiro-chô, ca. 1000–1300 m, 10.–13.VII.1995, H. Yoshitomi leg. (NMPC).
Diagnosis. This species can be easily recognized based on the pronotum with sides nearly straight in both sexes (Fig. 8F), the relatively short elytra (Fig. 4C) which are together 1.8–1.9 times as long as wide, the relatively smooth elytral surface (Fig. 10I) with mostly large punctures, and a unique shape of the aedeagal median lobe which is distinctly broad basally, gradually narrowed medially, and then slightly widened subapically (Sakai 1982).
Sexual dimorphism. Females are slightly more robust and relatively shorter than males. For more information, see Sakai (1982).
Distribution. This species is endemic to Japan, being known across Honshu, Kyushu, and Shikoku Islands (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 475, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon hisamatsui Sakai 1982
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon hisamatsui

description: Eurypogon hisamatsui Sakai, 1982
(Figs 4D, 9A, 10J)
Eurypogon hisamatsui Sakai, 1982: 60.
Type locality. “Mt. Tsurugi, Tokushima Pref. ” [Japan, Shikoku, Tokushima Prefecture, Mt. Tsurugi, ca. 33°51′N 134°05′E].
Type material. Holotype male (EUMJ), labeled: “[SHIKOKU], Mt. Tsurugi, Tokushima Pref., 11. VII. 1976, A. Oda leg.” // “ Holotype Eurypogon hisamatsui SAKAI 1982 ”. Four paratypes [not studied by us], one male and three females (EUMJ).
Additional material examined. JAPAN: HONSHU: 1 female, Gumma Pref., Nikko distr., 1430–1500 m, 11.– 12.VIII.[19]80, L. Maranuma (BMNH).
Diagnosis. This species can be recognized based on the following combination of characters: punctures on head and pronotum (Figs 4D, 9A) relatively small and deep, elytra (Fig. 4D) together more than twice as long as wide, elytral punctures (Fig. 10J) fine, and aedeagal median lobe relatively broad for most of its length, then gradually narrowed towards apex (Sakai 1982).
Sexual dimorphism. Females are slightly more robust and relatively shorter than males, with distinctly shorter antennae. For more information, see Sakai (1982).
Distribution. This species is endemic to Japan, being known across Honshu and Shikoku Islands (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 475, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon japonicus Sakai 1982
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon japonicus

description: Eurypogon japonicus Sakai, 1982
(Figs 5A, B; 9B,C; 10K; 12H)
Eurypogon japonicus Sakai, 1982: 52.
Type locality. “Mt. Daisen, Tottori Pref. ” [Japan, Honshu, Tottori Prefecture, Mt. Daisen, ca. 35°22′N 133°32′E].
Type material. Holotype male (EUMJ), labeled: “DAISEN, TOTTORI, 23/ 27.V.1959, H. Yokoyama ”, “ Holotype Eurypogon japonicus SAKAI 1982 ”. 28 paratypes [not studied by us], nine males, 19 females (21 paratypes, eight males and 13 females in EUMJ).
Additional material examined. JAPAN: HONSHU: 2 males, Mie Pref., Hirakura, Misugi-mura [vill.], 23. V.1993, H. Yoshitomi leg. (NMPC); 2 males 1 female, Mie Pref., Myojindake, 22. VI.1993, H. Kawase leg. (NMPC); 1 female, Gifu pref., Hiwada, Takane-mura [vill.], 6.VII.1994, H. Yoshitomi leg. (NMPC); 1 male, Gunma Pref., Konuma, Mt. Akagi, 21. VI.1998, S. Tsuyuki leg. (NMPC).
Diagnosis. This species can be recognized based on the following combination of characters: eyes almost as wide as the anterior margin of pronotum (Figs 5A,B; 9B,C), pronotal punctation (Fig. 9B,C) very dense, with most punctures very close to each other, elytra together about 2.3 times as long as wide, the elytral surface (Fig. 10K) rather smooth and with mostly large punctures, and the median lobe (Fig. 12H) about 5.4–5.8 times as long as wide.
Sexual dimorphism. Females are more robust and relatively shorter than males, being about 2.4–2.5 times as long as wide (excluding head; about 2.7 times in males; Fig. 5A,B). Females have shorter and less serrate antennae (serrations less acute) than males (Sakai 1982).
Distribution. This is the most widespread Japanese Eurypogon, currently being known from Honshu, Shikoku, and Kyushu Islands (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on pages 475-476, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Eurypogon ocularis Sakai 1982
Creators: name: Packova, Gabriela
name: Hájek, Jiří
name: Geiser, Michael
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Artematopodidae
Eurypogon
Eurypogon ocularis

description: Eurypogon ocularis Sakai, 1982
(Figs 5C, 9D, 10L, 12I)
Eurypogon ocularis Sakai, 1982: 56.
Type locality. “Mt. Nachi, Wakayama Pref. ” [Japan, Honshu, Wakayama Prefecture, Mt. Nachi, ca. 33°41′N 135°52′E].
Type material. Holotype male (EUMJ), labeled: “Mt. NACHI, KII, 2. V. 1962, T. Kawatsu” // “ Holotype Eurypogon ocularis SAKAI 1982 ”.
Additional material examined. JAPAN: HONSHU: 1 male, Nara-ken [Pref.], Odaigahara, Wasabi-dani, 1300– 1500 m, 31. V.1988, K. Akita leg. (NMPC).
Diagnosis. This species can be recognized based on the following combination of characters: eyes large, slightly wider than the anterior margin of pronotum (at least in male; Figs 5C, 9D), pronotal punctation (Fig. 9D) very dense, with most punctures very close to each other, elytra together 2.4 or more times as long as wide, the elytral surface (Fig. 10L) rather smooth and with moderately large punctures, and the median lobe (Fig. 12I) about 4.8 times as long as wide.
Distribution. Eurypogon ocularis is endemic to Japan, being described from Kii Peninsula and so far known from several localities in southern and central Honshu (Fig. 15).
description: Published as part of Packova, Gabriela, Hájek, Jiří, Geiser, Michael & Kundrata, Robin, 2024, Taxonomic review of Palearctic Eurypogon Motschulsky (Coleoptera: Artematopodidae), with a redescription of the only European species and descriptions of three new species from China, pp. 451-479 in Zootaxa 5437 (4) on page 476, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256
Conger biaculeatus
Creators: name: Lin, Chien-Hsiang
name: Steurbaut, Etienne
name: Nolf, Dirk
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Anguilliformes
Congridae
Conger
Conger biaculeatus

description: “ Conger ” biaculeatus sp. nov.
urn:lsid:zoobank.org:act: 644AE8C1-D8E8-471A-B0AC-054551C98BF0
Fig. 4D–H
Diagnosis
OL/OH = 1.8–1.9, OsL/CaL = 0.4–0.9. Small oval otoliths with salient and pointed rostrum and posterior rim. Wide sulcus, ostium opens widely to the antero-dorsal rim, cauda straight. Large colliculum visible in cauda.
Etymology
The species name biaculeatus alludes to the acuminated anterior and posterior rims of the otoliths.
Type material examined
Holotype UNITED STATES OF AMERICA • Left otolith; Alabama, Ozark, Bashi Formation; Fig. 4D; IRSNB P 10720.
Paratypes (13 in total) UNITED STATES OF AMERICA • 13 otoliths of which four are figured: Fig. 4E–H; same collection data as for holotype; IRSNB P 10721 to P 10724.
Type locality and horizon
United States of America, Ozark (Alabama), Bashi Formation.
Dimensions of the holotype
Length = 2.69 mm; height = 1.47 mm; thickness = 0.69 mm.
Description
The newly described species “ C. ” biaculeatus sp. nov. is characterized by oval-shaped otoliths with pointed anterior and posterior rims. The otoliths are moderately thick and have smooth margins, with slightly convex inner and outer faces. The deepest part of the otoliths is in their central part, where the ventral rim is slightly angled. The sulcus is wide and not well-divided into ostium and cauda, opening antero-dorsally on the anterior rim. A large colliculum fills the sulcus, which is more visible in the cauda. The ostial crista superior curves markedly upwards, and the caudal cristae are well-developed. The cauda is short, straight, and ends well before the posterior rim, while the crista inferior is almost straight without constriction. The size of the ventral area is comparable to the dorsal one.
Remarks
The sulcus type of “ C. ” biaculeatus is similar to that of other species under the incertae sedis genus, such as “ C. ” prolatus and “ C. ” websteri in Lin & Nolf (2022: figs 12d–g, 13a–c), which suggests that it may belong to an extinct taxon within the family Congridae.
Stratigraphic and geographic distribution
Ypresian: Bashi Formation, Alabama.
description: Published as part of Lin, Chien-Hsiang, Steurbaut, Etienne & Nolf, Dirk, 2024, Early Eocene fish otoliths from the eastern and southern USA, pp. 203-240 in European Journal of Taxonomy 935 on pages 214-216, DOI: 10.5852/ejt.2024.935.2557, http://zenodo.org/record/11526096