Lycocerus kintaroi Hsiao & Okushima, 2016

Hsiao, Yun, Okushima, Yûichi, Yang, Ping-Shih & Ko, Chium-Cheng, 2016, Taxonomic revision of the Lycocerus hanatanii species group (Coleoptera, Cantharidae), with the description of new species from Taiwan, European Journal of Taxonomy 170, pp. 1-33 : 28-30

Lycocerus kintaroi Hsiao & Okushima sp. nov.

urn:lsid:zoobank.org:act:FE9AC62A-4B2E-49A0-BD5E-58CD46500D58

Figs 2R , 5 D–F, 8

Diagnosis

This species can easily be distinguished from other members of this species group by the black pronotum, with yellowish fringed margins; black elytra, with very slender yellowish stripe on each humeral side; aedeagus with dorsal plate broad and subtruncated; apex of laterophyse far from apical margin of dorsal plate in lateral view.

Etymology

The specific epithet is dedicated to its collector, the late Dr. Kintaro Baba who was one of the great Japanese entomologists.

Type material

Holotype

TAIWAN: ♂, Shi Nan Shan , near Liu Kui , S Taiwan , 5 May 1986, K. Baba leg. ( NMNS).

Paratype

TAIWAN: 1 ♂, same data as for holotype ( EUMJ).

Description

Coloration

Eyes and head black. Antennae dark brown to black. Mandibles yellowish brown. Pronotum black, fringed with yellowish margins. Elytra black, with very slender yellowish stripe on each humeral side. Legs black. Pro-, meso- and metasterna, as well as abdomen blackish brown, with margins of abdominal ventrites yellowish brown. Body closely covered with pale pubescence; anterior margin of clypeus, antennae, elytra and legs fringed with pale bristles.

Male ( Fig. 2R )

HEAD. Nearly as long as wide; vertex faintly hollowed, depressed along apical margin of clypeus and in lateral areas before eyes; surface densely and finely punctate and lustrous; anterior margin of clypeus arcuate and faintly indented in middle; eyes not so large, globular and slightly prominent, ratio of eye diameter to interocular space 1:5.0; terminal labial palpomeres rounded ax-shaped; terminal maxillary palpomeres rounded ax-shaped; antennae filiform, extending to elytral midlength; antennomere I clavate, II short and a little expanded apicad, III to XI subcylindrical, all antennomeres without groove, ratio of antennomere lengths: 16: 10: 13.5:15.5: 15.5: 15: 14.5: 15: 14:13: 14.5.

PRONOTUM. Subquadrate, slightly narrower than head, about 0.95 times as long as wide; anterior and posterior margins moderately arcuate; lateral margins feebly sinuate; anterior angles rounded; posterior angles obtuse; dorsum convex in postero-lateral and hollowed in antero-lateral areas; medio-longitudinal groove distinct in posterior half; surface smooth and lustrous. Scutellum triangular, with rounded apex.

ELYTRA. Conjointly about 1.3 times as wide as pronotum, about 2.5 times as long as wide, sides subparallel; surface densely and finely punctate and lustrous.

LEGS. Moderately slender; femora mostly straight; tibiae mostly straight, with basal part feebly arcuate; claws simple.

AEDEAGUS ( Fig. 5 D–F). Ventral process moderately expanded and rounded apically, apex curved inwards, basal part broad and extending inwards onto ventral side; dorsal plate of each paramere as long as ventral process, broad and subtruncated, apical margin with some hairs on it, concave on inner margin. Laterophyse very short with obtuse apex, invisible in lateral view. Inner sac swollen, lengthened behind, somewhat shorter than tegmen.

Body length 5.50–6.00 mm (holotype: 5.50 mm); width 1.50–1.70 mm (1.50 mm).

Female

Unknown.

Remarks

The right antenna of the holotype is missing.

Distribution ( Fig. 8 )

Taiwan (endemic).

Figures

Fig. 2. Habitus, dorsal view. A–B. Lycocerus pictus (Wittmer, 1983). C–E. L. yitingi Hsiao & Okushima sp. nov. F–G. L. araticollis (Fairmaire, 1897). H–I. L. griseopubens (Pic, 1928). J–M. L. nigripennis (Pic, 1938). N–O. L. aurantiacus Hsiao & Okushima sp. nov. P–Q. L. evangelium Hsiao & Okushima sp. nov. R. L. kintaroi Hsiao & Okushima sp. nov. C, F, H, J, N, P, R. Name-bearing types. D, O, Q. Paratypes. A–B, E, G, I, K–M. Non-type specimens. A, C, F–G, I, K–L, N, P, R. Male. B, D–E, H, J, M, O, Q. Female. Scale bars: 1.0 mm.

Fig. 5. Aedeagus. A–C. Lycocerus evangelium Hsiao & Okushima sp. nov. D–F. L. kintaroi Hsiao & Okushima sp. nov. A, D. Ventral view. B, E. Lateral view. C, F. Dorsal view. Scale bars: 0.5 mm.

Fig. 8. Distribution map of L. nigripennis (Pic, 1938), L. evangelium Hsiao & Okushima sp. nov., L. aurantiacus Hsiao & Okushima sp. nov. and L. kintaroi Hsiao & Okushima sp. nov. from Taiwan.