Eurypogon cribratus
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 cribratus

description: Eurypogon cribratus (Hampe, 1867)
(Figs 1A,B; 6A,B; 7A,B; 10A; 11A,E,I; 12A; 13A–C)
Pseudodactylus cribratus Hampe, 1867: 374.
Eurypogon cribratus: Lawrence, 1995: 428.
Type locality. “ Abruzzen ” [Italy, Abruzzo Region]. Type material. Holotype female (NHMW, ex coll. Hampe), labeled: “ cribratus, M. Abruzzen ”.
Additional material examined. ITALY: EMILIA-ROMAGNA: 2 males, Bologna [Province], Lizzano [in] Belvedere, Corno alle Scale Mt., 1.700 m, 17.VII.2016, L. Colacurcio leg. (PCRK); TUSCANY: 1 male, 1 female, Alpi Apuane, G.E. Rasetti (MNHN, ex coll. Pic); 1 male, Lucque [Lucca], Ex Reiche (MNHN, ex coll. Fairmaire); 1 female, Verna [ca. 43°42′N 11°56′E], VI.1928, M. Lombardi (NMPC). Without precise data: 1 female (MNHN, ex coll. Fairmaire); 1 male, 32 Italie, coll. Leveillé (MNHN, ex coll. Pic).
Diagnosis. This is the only European species and can be recognized by the following combination of characters: body (Fig. 1A,B) dark brown to blackish, elytra sometimes paler than head and pronotum; elytra in males together about 2.15 times as long as wide, in females about 1.9–2.0 times as long as wide, intervals between punctures within row (Fig. 10A) usually about 1.0–3.0 times puncture diameter; intervals between punctures of different rows usually 2.0–3.0 puncture diameter; surface densely covered with long whitish or yellowish pubescence; aedeagal median lobe (Fig. 12A) with sides almost gradually narrowed towards apex but subapically more abruptly narrowed.
Redescription. Male. Body (Fig. 1A) 5.20–5.70 mm long, 2.60–2.75 times as long as wide. Body coloration dark brown to blackish; labrum, maxillae and labium paler, reddish brown to brown, elytra sometimes paler than head and pronotum; antennae and legs dark brown to blackish or slightly paler, brown to reddish brown; tibial bases and tarsomeres I–IV reddish brown, apical tarsomere and membranous lobes on preceding tarsomeres yellowish to light reddish brown. Body dorsally, densely covered with whitish or yellowish pubescence.
Head (Fig. 7A) sparsely and irregularly covered with punctures, which are denser basally, with few small glabrous areas medially; punctures large, round to ovoid, each medially with long, suberect to erected seta. Minimum interocular distance 1.65 times maximum eye width. Labrum transverse, anteriorly widely rounded. Mandible rather gradually narrowed toward apex, moderately curved. Maxillary palpus about twice as long as labial palpus, apical palpomere elongate hatchet-like, widest subapically, apically rounded and flattened. Antenna (Fig. 6A) relatively long, slender, reaching over half of elytral length, antenna about 0.90–0.95 times as long as elytral length; ratio of antennomere lengths = 1.6: 1.0: 1.0: 2.2–2.4: 2.6–2.8: 2.9: 3.0–3.1: 3.1: 3.1: 3.1: 4.0; scape suboval, antennomeres II and III short and simple, subequal in length, together shorter than antennomere IV; antennomeres IV–X elongate, slightly serrate, median antennomeres V–VIII about 3.0–3.3 times as long as wide, apical antennomere simple, apically abruptly narrowed.
Pronotum (Fig. 7A) transverse, about 1.45–1.55 times as wide as long, moderately convex, widest at posterior angles.Anterior margin almost straight to slightly rounded, sides bisinuate, posterior margin evenly rounded, slightly emarginate medially; anterior angles almost rectangular; posterior angles projected posterolaterally, sharp, apically narrowly rounded; surface of disc roughly uneven, covered with large, round to ovoid, moderately deep punctures, punctures medially irregularly distributed and distinctly denser around margins being almost contiguous, with few small glabrous areas; surface covered with moderately long suberect setae, mainly near and at posterior angles. Prosternum transverse, before procoxae about 3.0 times wider than long, prosternal process relatively short and stout. Scutellar shield slightly wider than long, apically rounded, and densely covered with setae which are shorter than those on pronotum and elytra.
Elytra (Fig. 1A) elongate, 4.15–4.40 times as long as pronotum, together about 2.15 times as long as wide, subparallel-sided for about 3/4 of their length, then gradually narrowed towards apex, slightly narrower at humeri, widest at about 2/3, apically somewhat truncate; apices conjointly rounded; surface (Fig. 10A) rather smooth, moderately densely punctate, punctures arranged in rows, much deeper than those on pronotum, intervals between punctures within row usually about 1.0–3.0 times puncture diameter; intervals between punctures of different rows usually 2.0–3.0 puncture diameter; surface densely covered with long, suberect yellowish setae oriented backwards. Leg (Fig. 1A) slender, femur widest mesally, tibia elongate, longer than femur, apically with pair of long, thin and sharp spurs, covered with setae; tarsus shorter than tibia; tarsomere I elongate, simple; tarsomeres II–IV gradually shorter, ventrally with elongate lamellae; tarsomere V slender, simple, slightly widened apically, distinctly narrower than remaining tarsomeres; pretarsal claws wide basally, and narrowed apically, simple.
Abdomen with ventrite 1 shorter than remaining ventrites, with distinct intercoxal process, ventrites 2–4 roughly subequal in length, ventrite 5 about 1.5 times as long as ventrite 4, apically widely rounded; each ventrite with circular smooth elevation near lateral edges, less apparent on ventrite 1; surface finely and very sparsely punctate on ventrites 1–4, slightly denser on ventrite 5, with moderately long suberect, yellowish pubescence, slightly longer on ventrite 5. Sternite VIII (Fig. 11A) roughly pentagonal, about 1.1 times as long as wide, medially membranous, apically narrowly rounded. Tergite IX (Fig. 11I) with base medially widely emarginate, laterally with short apodemes, apically triangularly and deeply emarginate; surface covered with short setae. Sternite IX (Fig. 11E) elongate, subovate, about 2.6 times as long as wide, widest roughly at apical third, base laterally with slender elongate apodemes, apex covered with short setae. Tergite X (Fig. 11I) about 1.5 times as long as wide, deeply nested in and connected by membrane with tergite IX, apically rounded; surface covered with short setae, mainly subapically and apically.
Aedeagus (Fig. 12A) about 2.8 times as long as wide; median lobe (without struts) about 4.0 times as long as wide, moderately robust, with sides almost gradually narrowed towards apex but subapically more abruptly narrowed, apically rounded; basal struts short, about 1/4 of median lobe length; parameres elongate, apically partly membranous, almost reaching place where median lobe is abruptly narrowed subapically; junction of parameres connected by thin process to transverse basal sclerite which is dorsally attached to basal portions of parameres.
Female. Body (Fig. 1B) 5.00– 6.60 mm long (holotype 5.80 mm), 2.30–2.50 times as long as wide. Similar to male except for the following characters: body (Fig. 1B) more robust, widest posterior to elytral mid-length; minimum interocular distance 2.05 times maximum eye width; antenna (Fig. 6B) reaching around 1/3 of elytral length, and about 0.60 times as long as elytral length, antennomeres shorter and thicker, ratio of antennomere lengths = 1.4: 1.0: 1.0: 1.7: 1.8–1.9: 1.8–1.9: 1.9–2.0: 1.9–2.0: 1.9–2.0: 1.9–2.0: 2.4–2.5; pronotum (Fig. 7B) relatively wider, about 1.55 times as wide as long, convex medially; elytra together about 1.9–2.0 times as long as wide, somewhat rounded at apical third. Abdominal sternite VIII (Fig. 13A) partly membranous, approximately 1.8 times as wide as long (without spiculum), with sides straight, gradually narrowed towards apex; apex somewhat widely rounded; surface finely punctate and covered with sparse pubescence, mainly at margins and apex; spiculum slender, about 4.0 times sternite length. Ovipositor (Fig. 13B,C) elongate; paraprocts approximately 2.3 times as long as gonocoxites; short styli attached to gonocoxites apically. Bursa copulatrix (Fig. 13B) membranous, sac-like, with some slightly sclerotized inner structures.
Variability. One female specimen has whitish body pubescence (yellowish in other examined specimens). There is also a rather great variation in elytral punctation, some specimens have punctures finer and intervals between them longer, while some other have punctures slightly larger, with intervals between them shorter. This can be sometimes seen also on different parts of elytra within a single specimen.
Distribution. This species is endemic to Italy, being known from various parts of the Apennine Mountains: Tuscan-Emilian Apennines, Apuan Alps, Abruzzo, Lucan Apennines (see, e.g., Nardi et al. 2009; Angelini 2020; Fig. 15). It is doubtfully recorded from Sicily (e.g., Poggi 2003).
Remark. Although previous authors (e.g., Lawrence 1995; Bocak 2007) stated 1866 as the year of Hampe’s publication, based on the note in the contents of the tenth volume of the Berliner Entomologische Zeitschrift, the fourth issue of the journal (pages 317–454) was published in January 1867.
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 453-460, DOI: 10.11646/zootaxa.5437.4.1, http://zenodo.org/record/10985256