Tenomerga kurosawai Miyatake, 1986

Yoshitomi, Hiroyuki, 2024, Revision of Tenomerga (Coleoptera, Cupedidae) of Japan and adjacent regions, Zootaxa 5555 (2), pp. 201-226 : 220

Tenomerga kurosawai Miyatake, 1986

[Japanese name: Yakushima-nagahiratamushi]

Figs 1I, J , 3I, J , 4E , 11 , 13D ; Table 1

Tenomerga kurosawai Miyatake, 1986: 111 .

Type specimens examined. Holotype ( EUMJ), male, “HANA-NO-EGO YAKU IS. 14. VIII. 1965 H. Konishi ”, “HOLOTYPE Tenomerga kurosawai MIYATAKE ” . Paratype ( EUMJ), female, “[YAKUSHIMA] Kurio South Coast 12. Ix. 1972 Toku Watanabe”, “47. 9. 12 DZl B”, “PARATYPE Tenomerga kurosawai MIYATAKE ” .

Other specimens examined. [ JAPAN] <Yakushima> 1 female, ( EUMJ), Shiratani-rindo, 14–16. VII. 1997, H. Yoshitomi leg.

Diagnosis. Color of body yellowish brown, with alternating dark and pale brown markings. Elytra ( Fig. 4E ) with 10 longitudinal rows of window punctures; window punctures transverse.

Male ( Fig. 1I ). Eyes ( Fig. 3I ) large, prominent. Antennae long and slender, reaching about proximal 3/4 of elytra; AL/TL 0.79; approximate ratio of each antennomere (n = 1) as 2.75: 1.00: 3.25: 3.85: 4.00: 4.60: 5.00: 5.00: 5.10: 5.50: 7.00. Anterior pronotal angles ( Fig. 3I ) strongly acute and projecting antero-laterally. HL/HW 0.73; PW/PL 1.30; EL/EW 2.84; EL/PL 6.05; EW/PW 1.64; TL/EW 3.74; EYL/EYW 1.86; TEL/HL 0.13. Apex of sternite IX simply pointed. Bifurcate process ( Fig. 11C ) V-shaped, rectangular in basal part. Parameres ( Fig. 11A, B ) with posterior projection of dorsal margin (pp) arcuate; apical hook simply curved and pointed; ventro-marginal spines (vms) long, reaching apical hook. Apical margin of dorsal plate (dp) shallowly concave. Apical margin of mesal lobe (ml, Fig. 11A ) shallowly concave.

Female ( Fig. 1J ). Eyes ( Fig. 3J ) small. Antennae short and stout, exceeding about proximal 1/2 of elytra; AL/TL 0.69–0.71 (0.70); approximate ratio of each antennomere (n = 2; average) as 3.30: 1.00: 3.10: 3.47: 3.67: 3.93: 4.07: 3.92: 4.17: 4.02: 5.27. Anterior pronotal angles ( Fig. 3J ) acute. HL/HW 0.67–0.69 (0.68); PW/PL 1.35–1.36 (1.36); EL/EW 2.91–2.95 (2.93); EL/PL 6.22–6.40 (6.31); EW/PW 1.55–1.63 (1.59); TL/EW 3.75–3.86 (3.80); EYL/EYW 1.44–1.88 (1.66); TEL/HL 0.18–0.19 (0.19).

Distribution. Japan: Yakushima.

Figures

FIGURE 1. Habitus of Tenomerga spp. A, B) Tenomerga mucida, C, D) T. anguliscutis, E, F) T. japonica, G, H) T. trabecula, I, J) T. kurosawai, K, L) T. yamato. A, C, E, G, I, K) males; B, D, F, H, J, L) females. I) holotype, J) paratype. Scale bars = 5.0 mm.

FIGURE 3. Heads and pronota of Tenomerga spp. A, B) Tenomerga mucida, C, D) T. anguliscutis; E, F) T. japonica, G, H) T. trabecula, I, J) T. kurosawai, K, L) T. yamato. A, C, E, G, I, K) males; B, D, F, H, J, L) females. I) holotype, J) paratype. Scale bars = 1.0 mm.

FIGURE 4. Dorso-lateral views of elytra of Tenomerga spp. A) Tenomerga mucida, B) T. anguliscutis, C) T. japonica, D) T. trabecula, E) T. kurosawai, F) T. yamato. Scale bars = 1.0 mm.

FIGURE 11. Male genitalia of Tenomerga kurosawai. A, B) aedeagus, dorsal (A) and ventral (B) views, C) bifurcate process.

FIGURE 13. Distribution maps of Tenomerga spp. A) Tenomerga mucida, B) T. anguliscutis, C) T. japonica (rhombus) and T. trabecula (triangle), D) T. yamato (square) and T. kurosawai (star).