Gamepenthes yoshidai Ohira , 1995

Arimoto, Koichi & Arimoto, Hisayuki, 2020, The genus Nipponodrasterius Kishii (Coleoptera, Elateridae, Agrypninae), a junior synonym of the genus Gamepenthes Fleutiaux (Coleoptera, Elateridae, Elaterinae), with review of the Japanese Gamepenthes species, ZooKeys 1004, pp. 109-127 : 109

Gamepenthes yoshidai Ohira, 1995 Figures 1E , 4F , 7E

Gamepenthes yoshidai Ôhira, 1995b: 27 (original description; type locality: Mt. Tsurugi-san, Tokushima Prefecture, Shikoku, Japan).

Material examined.

Paratype. 1 female, Japan, Shikoku, Tokushima Prefecture, Miyoshi City, Mt. Tsurugi-san, Minokoshi, 31 VII 1982, Yûji Kurota leg.

Non-type material.

2 males, Japan, Shikoku, Tokushima Prefecture, Naka District, Naka Town (formerly Kisawa Village), Mt. Takashiro-yama, 31 VII 1993, Mitsuo Kakô leg. [GY001, GY002].

Diagnosis.

Body slender (EI: 259-265, BI: 254-282). Prothorax black; hind angles of pronotum yellow. Each elytron with three separate yellow markings basally. Antennomere II shorter than wide in male, almost as long as wide in female; III shorter than wide in male, longer than wide in female; IV elongate (1.92-2.06 times longer than wide in male, 2.17 times longer than wide in female), longer than II-III combined (1.27-1.77 times as long as II-III combined). Prosternal process strongly inclined dorsad (43-50°). Metacoxal plates narrowed outwards on lateral half, with outer edge narrow. Apical edge of elytra rounded, without spines. Apex of parameres beyond pre-apical expansions widely triangular (apex length 0.3-0.4 times width of parameres at expansion).

Measurements.

Male (2 spec.). BL: 6.96-7.29; BW: 1..87-1.98; MAE: 1.17-1.21; MBE: 0.711-0.752; OI: 161-164; PL: 1.72-1.87; PML: 1.51-1.65; PAW: 1.17-1.23; PW: 1.74-1.87; PI: 98.8-100; PWI: 148-152; EL: 4.85-5.13; EW: 1.87-1.98; EI: 259; BI: 275-282. Female (1 spec.). BL: 7.20; BW: 1.89; MAE: 1.15; MBE: 0.743; OI: 154; PL: 1.98; PML: 1.71; PAW: 1.16; PW: 1.82; PI: 109; PWI: 157; EL: 5.02; EW: 1.89; EI: 265; BI: 254.

Distribution.

Japan: Shikoku. This species may be endemic to Shikoku, Japan.

Figures

Figure 1. Gamepenthes spp., male, habitus, dorsal view A G. ornatus [GO 003] B G. pictipennis [GP 010] C G. similis [GS 003] D G. versipellis [GV 006] E G. yoshidai [GY 001].

Figure 4. Gamepenthes spp., head and prothorax A G. ornatus, male [GO 003] B G. ornatus, female [GO 002] C G. versipellis, male [GV 006] D G. versipellis, female [GV 007] E G. pictipennis, male [GP 010] F G. yoshidai, male [GY 001] A-D dorsal view E, F lateral view.

Figure 7. Gamepenthes spp., male, aedeagus, ventral side A G. ornatus [GO 006] B G. pictipennis [GP 006] C G. similis [GS 008] D G. versipellis [GV 003] E G. yoshidai [GY 002].