Carpelimus (s. str.) communius Gildenkov, 2019

Gildenkov, Mikhail, 2019, Три Новых Виąа Роąа Carpelimus Leach, 1819 (Coleoptera: Staphylinidae: Oxytelinae), Бλизких К Carpelimus (S. Str.) Planicollis (Bernhauer, 1902), Amurian Zoological Journal XI (1), pp. 21-27 : 22-23

Carpelimus (s. str.) communius Gildenkov , sp. nov.

http://www.zoobank.org/ NomenclaturalActs/420a1eef-d27e-4ba4-927d-ddc0db465d31

( Figs. 1 –3, 7, 11)

Material. Holotype: 1♂ — VIETNAM N (Na Hang) 160 km NNW Ha Noi NE env. of Na Hang 1–14.06.96, h= 150–200m lg. A. Napolov & I. Roma, J. F. Cornell Colln. 2008 Acc. Z-20,351 FIELD MUSEUM ( FMNH).

Paratype: 1♀, 1 ex. — VIETNAM N (Na Hang) 160 km NNW Ha Noi NE env. of Na Hang 1–14.06.96, h = 150–200m lg. A. Napolov & I. Roma, J. F. Cornell Colln. 2008 Acc. Z-20,351 FIELD MUSEUM ( FMNH) ; 1♂ — Thailand, Chumphon Province, Phato , 09.03.2011, leg. O. Blinov (cMG) ; 1♂ — W. MALAYSIA FELDA LASAH vill. env. 40 km NE of IPOH 13 – 21.03.2001 R. Hergovits leg. (cPB).

Description. Holotype. Body length approximately 3.0 mm. Colouration brown; legs and antennae yellow brown. Integument slightly shiny; body with short light-coloured hairs.

Head transverse, with a wide base; length to maximum width ratio (from posterior head margin to anterior clypeal margin) approximately 24: 39. Neck constriction distinct. Eyes large, convex, occupying almost entire lateral part of the head. Temples almost absent, head widest across eyes (see fig. 1). Head surface with delicate, fine and dense punctation. Diameter of punctures about 4.0 times smaller than an eye facet. Distance between punctures significantly smaller than their diameter, interspaces smooth, slightly shiny. Antennae long, antennal segments 1–11 elongate. Last three segments more massive than others and form a loose club (see fig. 1).

Pronotum widest at about basal 2/3, then narrowed. Lateral margins form a notch, and then broadly rounded (see fig. 1). Length to maximum width ratio of pronotum aproximately 32: 47. Pronotum surface with delicate, fine and dense punctation. Diameter of punctures about 4.0 times smaller than an eye facet. Distance between punctures significantly smaller than their diameter, interspaces smooth, slightly shiny. Pronotal disc with two pairs of distinct symmetrical depressions and one oval depression near apex along midline. Base of pronotal disc with narrow, crescent-shaped depressions separated by a medial ridge. Central part of pronotal disc with oval depressions fused across midline into a single butterfly-shaped depression (see fig. 13).

Elytra. Length to combined width ratio approximately 49: 55. Elytra with rather delicate, fine and dense punctation. Diameter of punctures about 1.5 times smaller than an eye facet. Distance between punctures slightly smaller than their diameter, interspaces smooth, slightly shiny.

Abdomen delicately shagreened.

Aedeagus with characteristic structure (see figs. 2, 7, 11).

Female. Sexual dimorphism absent; female morphologically similar to male. Spermatheca with a characteristic structure (see fig. 3) for representatives of the subgenus Carpelimus ( Gildenkov 2007a, 2015).

Remarks on diagnosis. This species is very similar in its colouration, body size, punctation and form of pronotum to related Carpelimus (s. str.) planicollis (Bernhauer, 1902) , C. raptius sp. nov. and C. taitungensis sp. nov. (habitus as in fig. 1). The new species can be clearly distinguished only by aedeagus structure (see figs. 2, 4–14).

Distribution. Vietnam, Thailand and Malaysia.

Etymology. From Latin communia (“common”); the name reflects that the species is widespread.

Figures

Fig. 1. Carpelimus (s. str.) communius, sp. nov., paratype, female, habitus, dorsal view Рис. 1. Carpelimus (s. str.) communius, sp. nov., паратип, самка, хабитус ΔорсаΛьно