Carpelimus (Trogophloeus) moluccanensis Gildenkov, 1830

Gildenkov, M. Yu., 2020, Eight new species of the genus Carpelimus Leach, 1819 from Indonesia (Coleoptera: Staphylinidae: Oxytelinae), Russian Entomological Journal 29 (1), pp. 53-60 : 53-54

Carpelimus (Trogophloeus) moluccanensis Gildenkov , sp.n.

Figs 1 , 7–9 .

MATERIAL. Holotype, ♂ “ INDONESIA, N-Molucca isl. Halmahera , Central Weda Selatan distr. Loleo, S env., Tilopa vill. leg. D. Telnov & K. Greke ” “ 15–18 km SW, Oham, 13.–14. IX.2007, primary lowland forest, UV-Light 150 m, 0°14´46,74´´N 127°52´38,19´´E ” ( NKME) . Paratypes: 4♂♂, 5♀♀, 9 ex. “ INDONESIA, N-Molucca isl. Halmahera , Central Weda Selatan distr. Loleo, S env., Tilopa vill. leg. D. Telnov & K. Greke ” “ 15–18 km SW, Oham, 13.–14. IX.2007, primary lowland forest, UV-Light 150 m, 0°14´46,74´´N 127°52´38,19´´E ” ( NKME; cMG — 1♂, 2 ex.) ; 1♂ “ INDONESIA, N-Molucca isl. Halmahera , Central Weda Selatan distr. Loleo vill., S Tilope vill. leg. D. Telnov & K. Greke ” “ 15 km SW Oham, 190m 20.IX.2007, prim. Lowland forest, UV light, 0°14´46,74´´N 127°52´38,19´´E ” (cMG) .

DESCRIPTION (holotype). Length 1.8 mm. Overall colouration brown. Entirely dark brown; legs and antennal bases yellow brown, antennae darkened toward apex to brown. Integument slightly shining, body with short, light-coloured hairs.

Head transverse, with a wide base, ratio of its length (from posterior margin of head to anterior margin of clypeus) to maximum width about 19:26. Neck constriction prominent. Eyes 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. 1 ). Head surface with delicate, fine and dense punctation. Puncture diameter about 1.5 times as small as eye facet. Distances between punctures significantly smaller than their diameter, interspaces smooth, slightly shining.Antennae rather long, antennal segments 1–3 elongated; segments 4–7 slightly elongated; segments 8–10 about as long as wide; segment 11 elongated, conical. Last 3 segments more massive than others and form loose club ( Fig. 1 ).

Pronotum widest about 2/3 its length from base, then narrowed. Lateral margins straight from base, then smoothly rounded ( Fig. 1 ). Ratio of pronotum length to its maximum width about 23:29. Surface of pronotum with delicate, fine and very dense punctation. Diameter of punctures about 1.5 times as small as eye facet. Distance between punctures significantly smaller than their diameter, punctures almost merging in central part of disc, interspaces smooth, slightly shining. Pronotal disc with a small, unpaired, oval depression along midline at apex and 2 pairs of distinct, symmetrical depressions: 1 pair of widely crescent-shaped depressions, separated by barely distinct medial ridge, near base and 1 pair in central part of disc, merging across midline to form a single butterfly-shaped depression ( Fig. 1 ).

Ratio of length of elytra to their combined width about 33:37. Scutellum with weak oval depressions ( Fig. 1 ). Surface of elytra with delicate, fine and dense punctation. Puncture diameter about 1.5 times as small as eye facet. Distances between punctures significantly smaller than their diameter, interspaces smooth, slightly shining, punctation similar to that on pronotum, but more uniform.

Abdomen delicately shagreened.

Aedeagus of characteristic structure ( Figs 7–8 ).

Female. Sexual dimorphism absent, female morphologically similar to male.

Spermatheca of characteristic structure ( Fig. 9 ).

COMPARATIVE REMARKS. The new species is similar in colouration, body morphology and microsculpture of integument [ Gildenkov, 2019a] to Carpelimus (Trogophloeus) notumus Gildenkov, 2019 and C. (T.) vilisus Gildenkov, 2019. It clearly differs in the structure of the aedeagus ( Figs 7–8 ).

DISTRIBUTION. Indonesia, Maluku Islands.

ETYMOLOGY. Named for its geographical distribution.

Figures

Figs 1–3. Carpelimus (Trogophloeus) spp., holotypes, males, dorsal view: 1 — C. moluccanensis, sp.n.; 2 — C. ibelensis, sp.n.; 3 — C. irianensis, sp.n. Рис. 1–3. Carpelimus (Trogophloeus) spp., голотипы, самцы, сверху: 1 — C. moluccanensis, sp.n.; 2 — C. ibelensis, sp.n.; 3 — C. irianensis, sp.n.

Figs 7–19. Genitalia of Carpelimus: 7–9 — C. moluccanensis, sp.n.; 10–11 — C. ibelensis, sp.n.; 12–13 — C. irianensis, sp.n.; 14– 16 — C. jayapurensis, sp.n.; 17–19 — C. filous, sp.n.; 7, 10, 12, 14, 17 — aedeagus, ventral view (holotypes); 8, 11, 13, 15, 18 — aedeagus, lateral view (holotypes); 9, 16, 19 – spermatheca (paratypes). Scale bar: 0.25 mm. Рис. 7–19. Гениталии Carpelimus: 7–9 — C. moluccanensis, sp.n.; 10–11 — C. ibelensis, sp.n.; 12–13 — C. irianensis, sp.n.; 14– 16 — C. jayapurensis, sp.n.; 17–19 — C. filous, sp.n.; 7, 10, 12, 14, 17 — Эдеагус, сниЗу (голотипы); 8, 11, 13, 15, 18 — Эдеагус, сбоку (голотип); 9, 16, 19 – сперматека (паратипы). Масштаб: 0,25 мм.