Loncovilius germaini
Creators: name: Reyes-Hernández, José L.
name: Hansen, Aslak Kappel
name: Shaw, Josh Jenkins
name: Solodovnikov, Alexey
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Loncovilius
Loncovilius germaini

description: Loncovilius germaini (Scheerpeltz, 1933)
(Figs 5A, 9A, 10A–C, 12A, 13A, 14A)
Germain 1903: 412 (as Philonthus cribripennis, original description); Bernhauer and Schubert 1914: 332 (as Philonthus chilensis, replacement name); Scheerpeltz 1933: 1344 (as Philonthus germaini, replacement name); Coiffait and Sáiz 1966: 406 (as Loncovilius (Lienturius) germaini, characters); Coiffait and Sáiz 1968: 365 [as Loncovilius (Lienturius) germaini; checklist]; Sáiz 1971: 385 [as Loncovilius (Lienturius) germaini; listed without new data]; Herman 2001a: 26 (as Loncovilius chilensis, nomenclature); Herman 2001b: 3083 (as Loncovilius chilensis, catalogue); Newton 2017: 22 (as Loncovilius germaini, nomenclature).
Material eoamined: Supporting Information, File S7.
Diagnosis: Head dorsally without microsculpture; gula without isodiametric microsculpture in the middle; females with a11 distinctly longer than a10 (a11:a10 ratio <1.5). Elytra, including epipleura, evenly setose and with several coarse non-setiferous punctures. Protibiae sexually dimorphic, with laterodorsal row of thick spines only present in females. Tergite VIII with medial apical emargination only in females. Aedeagus as in Figure 10A–C.
Description: Measurements ♂ [min–max (average); N = 6]: FBL = 2.9–3.44 (3.19); TL = 5.6–6.25 (6.01); HW = 0.87– 1.01 (0.94); HL = 0.76–0.86 (0.82); HW/HL = 1.12–1.2 (1.14); PW = 1.11–1.29 (1.21); PL = 0.97–1.18 (1.08); PW/ PL = 1.1–1.14 (1.12); EW = 1.4–1.64 (1.52); EL = 1.16–1.4 (1.3); PW/HW = 1.26–1.33 (1.29).
Measurements ♀ [min–max (average); N = 6]: FBL = 3.36– 3.87 (3.6); TL = 7.31–7.77 (7.54); HW = 0.96–1.12 (1.03); HL = 0.85–0.95 (0.91); HW/HL = 1.11–1.18 (1.13); PW = 1.25–1.48 (1.34); PL = 1.13–1.28 (1.2); PW/PL = 1.1– 1.16 (1.12); EW = 1.5–1.88 (1.68); EL = 1.38–1.64 (1.49); PW/HW = 1.26–1.33 (1.3).
Head black to brown-black; mouthparts, antennae, pronotum, legs, disc of elytra, and abdominal segments dark reddish-brown; epipleura, abdominal tergites, and sternites with posterior margin light reddish-brown.
Head transverse; dorsally and ventrally glossy with few micropunctures, dorsally without microsculpture, with coarse non-setiferous punctures; posterior angles indistinct with few setiferous punctures of medium and small size. Eyes small (EYL/ HL = x = 0.46), from 1.4 to 1.86 times longer than the length of temples (in lateral view); distance between eyes about 1.68 times as long as length of the eye in males and 1.8 times in females. Antennal insertions situated closer to frontoclypeus than to eye; antennomeres 2 and 3 subequal in length; antennomeres 5 to 10 subequal in length; antennomere 11 from 1.53 to 1.69 times longer than antennomere 10 in males and from 1.5 to 1.6 in females. Basal and parocular punctures usually single; posterior frontal puncture located anterior to temporal puncture; no small setose punctures between frontoclypeal punctures and anterior frontal punctures; ventral basal ridge rather straight in L-shape, almost united with gular sutures; postgenal ridge absent; postmandibular ridge distinctly separated from eye margin; well-developed PMP; nuchal ridge present laterally and dorsally, fused with infraorbital ridge; gula without microsculpture medially, gular sutures moderately separated. Mandibles with dorsolateral groove; labrum with subrectangular sclerotized region and entire apical margin; mentum with seta beta only; penultimate labial palpomere markedly dilated apicad, apical palpomere distinctly narrower than penultimate and more or less subconical.
Pronotum transverse, convex, evenly curved, usually with one PPDS with additional paired punctures adjacent to AMRSP (APP), without SLSP, with few coarse non-setiferous punctures; flexible postcoxal hypomeral extension (process) interrupted by inferior line. Elytra evenly setose and with several coarse non-setiferous punctures.Mesosternumwithfourmacrosetaearrangedinarowmedially.
In both sexes, metatarsomeres 2–4 with pale adhesive setae, without terminal plate; metatarsomere 1 shorter than 5, metatarsomere 4 ventrally with apical margin slightly sinuate. Protibiae sexually dimorphic, with laterodorsal row of thick spines only in females. In males, mesotarsomeres 1–4 with pale adhesive setae, mesotarsomeres 1–3 with terminal plate. In females, mesotarsomeres 2–4with pale adhesive setae,without terminal plate.
Abdominal tergites III and IV with two patches of punctures of moderate size and density, with middle impunctate line (Fig. 9A); in females tergite VIII emarginate medio-apically. Sternite III with basal transverse carina converging evenly at an obtuse angle; lateral tergal sclerites IX not dorsoventrally or laterally flattened. Male sternite VIII with deep V-shaped emargination medially (Fig. 14A); female sternite VIII with U-shaped emargination medially; male sternite IX with obtuse emargination medially, its basal portion shorter than distal portion; male tergite X subtruncate medially (Fig. 12A); female tergite X with U-shaped emargination medially (Fig. 13A); ovipositor, its second gonocoxite without macrosetae medially (Fig. 9F).
Aedeagus. As in Figure 10A–C; its total length ~ 1.21.
Distribution and habitat: Loncovilius germaini is known only from Chile, from the Araucanía, Aysén, and Los Lagos regions where it occurs in the eastern portion of the Valdivian temperate forest ecoregion, from 750 to 1450 m of elevation. It has been collected by sifting leaf litter and moss, also by using Malaise and window traps, as well as carrion and dung baited pitfall traps.
Remarks: Loncovilius germaini was described as Philonthus cribripennis based on an unspecified number of syntypes from an uncertain type locality in Chile. This name was found to be preoccupied and replaced by another preoccupied name P. chilensis Bernhauer and Schubert 1914; the latter was replaced again by P. germaini Scheerpeltz, 1933. Coiffiat and Sáiz (1966, 1968) and Sáiz (1971) treated L. germaini as a member of the subgenus Lienturius of the genus Loncovilius without adding much data about morphology or distribution of this species, for which even the aedeagus hitherto remained not illustrated. Coiffait and Sáiz (1966) mentioned that the species was known from a female holotype kept in the collection of the Natural History Museum of Chile. At the same time, Camousseight (1980) did not list this species among the type material in Germain’s collection in this museum. We did not find any material that could be interpreted as types of L. germaini. Given the uncertainty about type material in the original description and the catalogue by Camousseight (1980), the type status of the female listed by Coiffait and Sáiz (1966) as ‘holotype’ must be verified in the future. For now, we have matched the identity of this species based on the description by Coiffait and Sáiz (1966). As explained by Newton (2017), Herman’s (2001a) interpretation of both names as replacements for only P. cribripennis and his resurrection of P. chilensis as the valid name for this species was incorrect.
description: Published as part of Reyes-Hernández, José L., Hansen, Aslak Kappel, Shaw, Josh Jenkins & Solodovnikov, Alexey, 2024, Phylogeny-based taxonomic revision and niche modelling of the rove beetle genus Loncovilius Germain, 1903 (Coleoptera: Staphylinidae: Staphylininae), pp. 1-42 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) (Zool. J. Linn. Soc.) 202 (1) on pages 25-26, DOI: 10.1093/zoolinnean/zlad143, http://zenodo.org/record/14443945