Carpelimus (Trogophloeus) keraliensis, Gildenkov, 2019

Gildenkov, M. Yu., 2019, Seven new species of the genus Carpelimus Leach, 1819 from the “ taprobanae ” group (Coleoptera: Staphylinidae: Oxytelinae), Russian Entomological Journal 28 (2), pp. 138-145 : 141-142

publication ID	https://doi.org/ 10.15298/rusentj.28.2.04
persistent identifier	https://treatment.plazi.org/id/1C2087FB-8323-1F17-6A58-FE71FAE0FE6D
treatment provided by	Felipe
scientific name	Carpelimus (Trogophloeus) keraliensis
status	sp. n.

Treatment

Carpelimus (Trogophloeus) keraliensis View in CoL

Gildenkov, sp.n.

Figs 4 View Figs 3–4 , 15–17 View Figs 7–22 .

MATERIAL. Holotype, ♂ “S-INDIEN: Kerala Cardamom Hills 10km SW Kumily 77°07´E 09°31´N ” “Vallakadavu. 1000m 24.12.1993, leg. Boukai & Kejval” ( NHMW). Paratype: 1♀ “S-INDIEN: Kerala Cardamom Hills 10km SW Kumily 77°07´E 09°31´N ” “Vallakadavu. 1000m 24.12.1993, leg. Boukai & Kejval” (cMG) GoogleMaps .

DESCRIPTION (holotype). Length 2.2 mm. Colouration brown. Head, pronotum and abdomen dark brown, elytra slightly lighter, dark brown with reddish tint; legs and antennae yellow brown, antennal segments 911 lighter than others. Integument slightly shining, body with short, light-coloured hairs.

Head transverse, with wide base, ratio of its length (from posterior margin of head to anterior margin of clypeus) to maximum width about 18:29. Neck constriction prominent. Eyes large, convex. Temples well-developed, round, eye diameter in dorsal view more than twice as long as temple length. Head widest across eyes ( Fig. 4 View Figs 3–4 ). Head surface with rather distinct, fine and dense punctation. Puncture diameter about twice as small as eye facet. Distances between punctures significantly smaller than their diameter, interspaces smooth, slightly shining. Antennae rather long, antennal segments 1–6 elongate; segments 78 about as wide as long; segments 9–10 slightly transverse; segment 11 elongate, conical. Last 3 segments more massive than others and form loose club ( Fig. 4 View Figs 3–4 ).

Pronotum widest about 2/3 its length from base, then narrowed. Lateral margins broadly rounded ( Fig. 4 View Figs 3–4 ). Ratio of pronotum length to its maximum width about 25:34. Surface of pronotum with distinct, fine and dense punctation; punctation similar to that on head. Puncture diameter about twice as small as eye facet. Distances between punctures significantly smaller than their diameter, interspaces smooth, slightly shining. Depressions on pronotal disc absent, except for small flattening at its base ( Fig. 4 View Figs 3–4 ).

Ratio of length of elytra to their combined width about 35:40. Scutellum with shallow, round depressions ( Fig. 4 View Figs 3–4 ). Surface of elytra with rather distinct, fine and dense punctation. Puncture diameter about equal to diameter of eye facet. Distances between punctures slightly smaller than their diameter, interspaces smooth, slightly shining.

Abdomen delicately shagreened.

Aedeagus of characteristic structure ( Figs 15–16 View Figs 7–22 ).

Female. Sexual dimorphism absent, female morphologically similar to male. Spermatheca of characteristic structure ( Fig. 17 View Figs 7–22 ).

COMPARATIVE REMARKS. The new species is most similar in size, the structure of the pronotum, colouration and punctation patterns to closely related species, C. magnicollis and C. cachariensis sp.n. The new species differs from C. magnicollis in having smaller size and is clearly distinguished by the structure of the aedeagus [ Gildenkov, 2015, p. 385, Figs 19 View Figs 7–22 : 45]. It differs from C. cachariensis sp.n. in having slightly more distinct punctation on the surface of the pronotum and is clearly differentiated from it by the structure of the aedeagus ( Figs 7–8, 15–16 View Figs 7–22 ).

DISTRIBUTION. India.

ETYMOLOGY. Named for its geographical distribution.