Carpelimus (Trogophloeus) madrasiensis, 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 : 144

Carpelimus (Trogophloeus) madrasiensis

Gildenkov, sp.n.

Figs 6 , 20–22 .

MATERIAL. Holotype, ♂ “ INDIA 53 Madras Amaravathi Dam. 20 km. S. d’udamalpet 400 m. 26-XI-72 Besuchet Löbl Mussard” ( MHNG) . Paratypes: 2♂♂, 4♀♀ “ INDIA 53 Madras Amaravathi Dam. 20 km. S. d’udamalpet 400 m. 26-XI-72 Besuchet Löbl Mussard ” ( MHNG; 1♂, 1♀ cMG); 1♀ “ INDIA Madras Anaimalai H. 18 km N. de Valparai 1250 m. 18-XI-72 Besuchet Löbl Mussard” ( MHNG) .

DESCRIPTION (holotype).

Length 1.9 mm. Colouration dark brown. Head, pronotum, abdomen and antennae dark brown, elytra slightly light- er, dark brown; legs and antennal bases 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 17:25. Neck constriction prominent. Eyes rather large, convex. Temples well-developed, round, eye diameter in dorsal view about 1.5 times as long as temple length. Head about as wide across eyes as across temples ( Fig. 6 ). Head surface densely shagreened. Antennae rather short, antennal segments 1–3 elongate; segments 4–5 about as wide as long; segments 6–10 transverse; segment 11 elongate, conical. Last 3 segments more massive than others and form loose club ( Fig. 6 ). Pronotum widest about 2/3 its length from base, then narrowed. Lateral margins slightly notched at base, then broadly rounded ( Fig. 6 ). Ratio of pronotum length to its maximum width about 20:27. Surface of pronotum densely shagreened. Depressions on pronotal disc absent, except for small flattening at its base ( Fig. 6 ).

Ratio of length of elytra to their combined width about 30:33. Scutellum with shallow, round depressions ( Fig. 6 ). 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 20–21 ).

Female. Sexual dimorphism absent, female morphologically similar to male. Spermatheca of characteristic structure ( Fig. 22 ).

COMPARATIVE REMARKS. The new species is most similar in size and in densely shagreened surface of the head and pronotum to closely related species, C. flavomustachus and C. asperus . It differs from them in having darker colouration and is clearly distinguished by the structure of the aedeagus [ Gildenkov, 2015, p. 384, Figs 18 : 12–13; Gildenkov, 2018, p. 139, Figs 56]. The new species differs from C. khasiensis sp.n. and C. mustangiensis sp.n. in having lighter colouration, more delicately shagreened surface of the head and pronotum and in the structure of the aedeagus ( Figs 18– 21 , 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.