Carpelimus (Trogophloeus) khasiensis, 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 : 142-144

Carpelimus (Trogophloeus) khasiensis

Gildenkov, sp.n.

Figs 5 , 18–19 .

MATERIAL. Holotype, ♂ “ INDIA Meghalaya: East Khasi Hills dist., Cherrapunjee, below Mawmluh , 25°14’59’’ N, 91°41’52’’ E, 1200 m.” “ 24.x.2004, Berlese broad-leaf litter, C. Carlton, R. Leschen, G. Cuccodoro, D. Erne; CC-017 FIELD MUS. NAT.

HIST.” ( FMNH).

DESCRIPTION (holotype).

Length 2.0 mm.Colouration dark brown, antennae brown, legs and antennal segment 1 light brown. 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 18:25. Neck constriction prominent. Eyes rather large, slightly convex. Temples well-developed, round, eye diameter in dorsal view only slightly longer than

20 21 18 19

temple length. Head about as wide across eyes as across temples ( Fig. 5 ). Head surface densely and coarsely shagreen- ed; large and dense punctation barely discernible only on vertex. Antennae rather short, antennal segments 1–3 elongate; segments 45 about as wide as long; segments 6–10 slightly transverse; segment 11 elongate, conical. Last 3 segments more massive than others and form loose club ( Fig. 5 ).

Pronotum widest about 2/3 its length from base, then narrowed. Lateral margins straight from base, then broadly rounded ( Fig. 5 ). Ratio of pronotum length to its maximum width about 19:28. Surface of pronotum densely and coarsely shagreened. Base of pronotal disc with barely discernible symmetrical, round depressions ( Fig. 5 ).

Ratio of length of elytra to their combined width about 30:34. Scutellum with shallow, round depressions ( Fig. 5 ). Surface of elytra with rather distinct, fine and dense punctation. Puncture diameter about equal to diameter of eye facet. Distances between punctures significantly smaller than their diameter, interspaces smooth, slightly shining.

Abdomen delicately shagreened.

Aedeagus of characteristic structure ( Figs 18–19 ).

Female unknown.

COMPARATIVE REMARKS. The new species is most similar in size, colouration, and in densely and coarsely shagreen- ed surface of the head and pronotum to a closely related species, C. mustangiensis sp.n., but is clearly distinguished from it by the structure of the aedeagus ( Figs 18–19 , 24–25 ).

DISTRIBUTION. India.

ETYMOLOGY. Named for its geographical distribution.

Figures

Figs 5–6. Carpelimus (Trogophloeus) spp., holotypes, males, dorsal view: 5 — C. khasiensis, sp.n.; 6 — C. madrasiensis, sp.n. Рис. 5–6. Carpelimus (Trogophloeus) spp., глотипы, самцы, сверху: 5 — C. khasiensis, sp.n.; 6 — C. madrasiensis, sp.n.

Figs 7–22. Genitalia of Carpelimus (Trogophloeus) spp.: 7–8 — C. cachariensis sp.n.; 9–11— C. finelypunctus sp.n.; 12–14 — C. hoaensis sp.n.; 15–17 — C. keraliensis sp.n.; 18–19 — C. khasiensis sp.n.; 20–22 — C. madrasiensis sp.n.; 7, 9, 12, 15, 18, 20 — aedeagus, ventral view (holotypes); 8, 10, 13, 16, 19, 21 — aedeagus, lateral view (holotypes); 11, 14, 17, 22 — spermatheca (paratypes). Scale bar: 0.25 mm. Рис. 7–22. Гениталии Carpelimus (Trogophloeus) spp.: 7–8 — C. cachariensis sp.n.; 9–11— C. finelypunctus sp.n.; 12–14 — C. hoaensis sp.n.; 15–17 — C. keraliensis sp.n.; 18–19 — C. khasiensis sp.n.; 20–22 — C. madrasiensis sp.n.; 7, 9, 12, 15, 18, 20 — Эдеагус, сниЗу (голотипы); 8, 10, 13, 16, 19, 21 — Эдеагус, сбоку (голотипы); 11, 14, 17, 22 — сперматека (паратипы). МасШтаб: 0.25 mm.

Figs 23–25. Carpelimus (Trogophloeus) mustangiensis, sp.n., holotype, male: 23 — habitus, dorsal view; 24 — aedeagus, ventral view; 25 — aedeagus, lateral view. Scale bar: 0.25 mm. Рис. 23–25. (Trogophloeus) mustangiensis, sp.n.,, sp.n., голотип, самец: 23 — габитус, сверху; 24 — Эдеагус, сниЗу; 25 — Эдеагус, сбоку. МасШтаб: 0.25 mm.