Carpelimus taitungensis Gildenkov 2019, sp. nov.

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

http://www.zoobank.org/NomenclaturalActs/ CDEB87EB-EF2F-48F0-94A8- 8687D8DC38A1

(Figs. 5, 9, 13)

Material. Holotype: 1♂ — TAIWAN: T'ai-tung Hsien (Dist.), Peiyuan, Tung-ho, elev. ca 200 m, 12.06.1972, white light trap, C. I. Cheng & T. S. Lo (FMNH).

Paratype: 1♂ — TAIWAN: T'ai-tung Hsien (Dist.), Shih-nan, Peiyuan, Tungho, elev. ca 200m, 2.09.1972, black light trap. F. J. Santana (cMG); 1♀ – TAIWAN: Peiyuan, Tai' tung Co., Tungho 200m. alt., 12.06.1972 C.I. Cheng & T. S. Ho (FMNH); 1♀ — TAIWAN: P'ing-tung Hsien (Dist.), K'enting Pk., elev. ca 250 m, 3.09.1974> <black light trap, F. J. Santana (FMNH).

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 side of head. Temples almost absent, head widest across eyes. 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 shining. 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, then broadly rounded. Length to maximum width ratio of pronotum approximately 33: 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. 1).

Elytra. Length to combined width ratio approximately 50: 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. 6, 9, 13).

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 C. planicollis (Bernhauer, 1902), C. communius sp. nov. and C. raptius sp. nov. (habitus as in fig. 1). The new species can be clearly distinguished only by aedeagus structure (see figs. 2, 4–14).

Distribution. Taiwan.

Etymology. Named after the place where the material was collected.