Tenomerga japonica ( Tamanuki, 1928 ), 2024

Yoshitomi, Hiroyuki, 2024, Revision of Tenomerga (Coleoptera, Cupedidae) of Japan and adjacent regions, Zootaxa 5555 (2), pp. 201-226 : 217-218

Tenomerga japonica ( Tamanuki, 1928)

[Japanese name: Hime-nagahiratamushi (Nihon-nagahiratamushi)]

Figs 1E, F , 2C , 3E, F , 4C , 9 , 13C ; Table 1

Cupes japonicus Tamanuki, 1928: 251 . Atkins 1963: 151; Nakane 1973: 2.

Tenomerga japonica : Neboiss 1984: 449; Miyatake 1985a: 24; 1985b: 1, pl. 1, 3 [figure and short description].

Type specimen examined. Holotype of Cupes japonicus Tamanuki, 1928 ( Fig. 2C ): male ( SEHU), “Japan Matsumura”, “ Cupes japonicus Tamanuki Type”, “Genitalia ♂ preparation A. Neboiss, 1983”, “ Tenomerga japonica (Tamanuki) comb. n. Neboiss 1983 HOLOTYPE ♂ ”. “ Tenomerga japonica (Tamanuki) det. Neboiss 1983”, “0000001302 Sys.Ent Hokkaido Univ. Japan [ SEHU]”, “HOLOTYPE Appended label by ÔHARA, INARI, KANBE SUZUKI and HIRONAGA 2007”.

Other specimens examined. [ JAPAN] <Tochigi Pref.> 4 males, 1 female, ( EUMJ), Ogurayama , Nikko-shi, 2. VIII. 1983, S. Saito leg. < Kanagawa Pref.> 1 male, ( NARO), Dodaira, Tanzawa , 20. VII. 1994, Y. Hirano leg. ; 1 male, ( NARO), Dodaira, Tanzawa , 31. VII. 1994, T. Kinoshita leg. ; 1 female, ( NARO), Odawara , VII. 1954, Y. Hirano leg. < Shizuoka Pref.> 1 male, ( EUMJ), Nekko, Izu-shi , 16. VII. 1967, Y. Kimura leg. < Nara Pref.> 1 male, ( SEHU), Obako-dake , 15. VIII. 1974, Y. Inatani leg. (Nakane coll. 1999) . < Wakayama Pref. .> 7 males, 3 females, ( SEHU), Gomadan-san , 5. VIII. 1957, T. Shibata leg. (Nakane coll. 1999; 1 male figured by Nakane, 1963, fig. 1-2) ; 1 male, ( NSMT), Koya-san , 2. VIII. 1952, S. Shibanai leg. ; 1 female, ( SEHU), Koya-san , 2. VIII. 1952, N. Yato leg. (Nakane coll. 1999) . < Ehime Pref.> 1 male, ( NSMT), Ishizuchi-san, Kumakogen-cho , 18. VII. 1950, M. Miyatake leg. ; 1 female, ( EUMJ), Ishizuchi-san, Kumakogen-cho , 29. VII. 2017, Y. Utsunomiya leg. ; 1 male, ( EUMJ), Iwayaji, Kumakogen-cho , 9. VIII. 1998, Y. Sugiura leg. ; 1 male, ( EUMJ), Keikoku, Odamiyama , 6. VIII. 1997, E. Yamamoto leg. ; 1 female, ( EUMJ), Komenono, Matsuyama-shi , 24. V. 1970, H. Kan leg. ; 1 male, ( EUMJ), Koyayama, Odamiyama , 12. IX. 1991, M. Kawanabe leg. ; 6 males, ( EUMJ), Koyayama, Odamiyama , 8. VIII. 1995, E. Yamamoto leg. ; 1 male, ( EUMJ), Mizunashi-yama, Odamiyama , 6. VIII. 1994, E. Yamamoto leg. ; 2 males, ( EUMJ), Narabara-san , 3. VIII. 1970 ; 3 males, 1 female, ( EUMJ), Narabara-san , VIII. 1975, Y. Yamaoka leg. 1 male figured in Miyatake, 1985b: 1, pl. 1, 3; 1 male, ( EUMJ), Odamiyama , 1. VIII. 1980, H. Kan leg. ; 1 female, ( EUMJ), Odamiyama , 14. VIII. 1984, E. Yamamoto leg. ; 1 female, ( EUMJ), Odamiyama , 23. VII. 1967, Y. Hori leg. ; 1 male, ( EUMJ), Omogo , 2. VIII. 1951, S. Hisamatsu leg. ; 1 male, ( EUMJ), Omogokei , 17. VII. 1970, M. Miyatake leg. ; 1 male, ( EUMJ), Omogokei , 20. VII. 1958, T. Yano leg. ; 1 male, ( EUMJ), Onogahara, Seiyo-shi , 22. VII. 1991, M. Kawanabe leg. ; 1 female, ( EUMJ), Rokuro (ca 850m), Odamiyama , 30. VII. 1994, M. Sakai leg. ; 1 female, ( EUMJ), Shiratsue, Matsuyama-shi , 19. VII. 1972, S. Kinoshita leg. LT. < Tokushima Pref.> 1 female, ( EUMJ), Kotsu-san, Yamakawa-cho , 6. VIII. 2011, M. Nishikawa leg. ; 1 female, ( OMM), Minokoshi , Tsurugi-san, 17. VIII. 1991 , T. Okayama leg.; 1 male, ( EUMJ), Tsurugi-san , 28. VII. 1961, M. Miyatake leg. < Kochi Pref.> 1 male, ( NSMT), Matsubagawa, Takaoka-gun , 12. VII. 1953, K. Kojima leg. ; 1 female, ( NSMT), Matsubagawa, Takaoka-gun , 12. VII. 1983, K. Kojima leg. ; 1 male, ( EUMJ), Matsubagawa, Takaoka-gun , 8. VII. 1961, M. Okada leg. ; 1 female, ( EUMJ), Yanase , 9. VII. 1961, M. Miyatake leg. < Fukuoka Pref.> 1 male, ( KUM), Bunda, Shinkawa, Ukiha-cho , Ukiha-shi , 24–29. VII. 2022, K. Kido leg. LT; 1 male, ( EUMJ), Hiko-san, Soeta-machi , 14. VIII. 1935, T. Esaki leg. ; 1 female, ( NSMT), Hiko-san, Soeta-machi , 21. VII. 1969, Y. Kurosawa leg. ; 1 female, ( KMNH), Takasu-yama, Soeda-cho , 24. VIII. 1985, Y. Takakura leg. ; 1 female, ( EUMJ), Wakasugi-yama , 7–9. VIII. 1931, Esaki, Hori, Cho, Fujino, Takeya & Hashimoto leg. < Kumamoto Pref.> 1 male, ( NSMT), Ichifusa-yama , 28. VII. 1952, S. Kimoto leg. ; 1 female, ( KUM), Ichifusa-yama , 8. VIII. 2009, T. Saigusa leg. < Oita Pref.> 1 female, ( KMNH), Sobo-san , 17. VII. 1946, M. Amano leg. ; 1 male, ( EUMJ), Sobo-san , 8. VIII. 1971, K. Adachi leg. ; 1 female, ( KMNH), Tsuchiiwa, base of Sobo-san , 28. VII. 1979, M. Amano leg. < Miyazaki Pref.> 1 male, ( NARO), Katamuki-yama , 24. VIII. 2009, R. Noda leg. < Kagoshima Pref.> 1 male, ( SEHU), Kurino , 30. VII. 1983, T. & T. Nakane leg. (Nakane coll. 1999) .

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

Male ( Fig. 1E ). Eyes ( Fig. 3E ) large, prominent. Antennae long and slender, reaching about proximal 3/4 of elytra; AL/TL 0.68–0.85 (0.79); approximate ratio of each antennomere (n = 10; average) as 3.27: 1.00: 3.48: 4.22: 4.86: 5.15: 5.25: 5.14: 5.11: 5.07: 6.46. Anterior angles of pronotum ( Fig. 3E ) acute or right-angled. HL/HW 0.57–0.68 (0.63); PW/PL 1.28–1.40 (1.36); EL/EW 2.84–3.17 (2.98); EL/PL 5.80–6.58 (6.20); EW/PW 1.48–1.61 (1.53); TL/EW 3.76–4.056 (3.90); EYL/EYW 1.42–2.00 (1.72); TEL/HL 0.08–0.15 (0.12). Apex of sternite IX simply pointed. Bifurcate process ( Fig. 9D ) V-shaped. Parameres ( Fig. 9A, B ) with posterior projection of dorsal margin (pp) arcuate; apical hook ( Fig. 7E ) simply curved and pointed; ventro-marginal spines (vms) short, not reaching apical hook. Apical margin of dorsal plate (dp, Fig. 9A ) shallowly concave. Apical margin of mesal lobe (ml, Fig. 9A ) indistinctly notched.

Female ( Fig. 1F ). Eyes ( Fig. 3F ) small. Antennae short and stout, reaching about proximal 1/2 of elytra; AL/TL 0.58–0.67 (0.62); approximate ratio of each antennomere (n = 10; average) as 3.47: 1.00: 3.32: 3.69: 3.92: 4.03: 4.06: 4.02: 4.02: 3.95: 5.19. Anterior pronotal angles ( Fig. 3F ) acute or right-angled. HL/HW 0.62–0.71 (0.65); PW/PL 1.38–1.54 (1.44); EL/EW 2.75–3.01 (2.88); EL/PL 6.29–6.92 (6.54); EW/PW 1.47–1.67 (1.58); TL/EW 3.58–3.87 (3.70); EYL/EYW 1.63–2.33 (1.94); TEL/HL 0.16–0.22 (0.18).

Distribution. Japan: Honshu, Shikoku, Kyushu; China (?).

Remarks. Tanaka (2004) recorded this species from Iriomote-jima, but this was probably misidentification with T. anguliscutis .

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 2. Holotypes and associated labels for Tenomerga spp. A) Cupes clathratus var. fuscus Tamanuki, 1928, B) Cupes formosanus Tamanuki, 1928, C) Cupes japonicus Tamanuki, 1928, D) Tenomerga yamato Miyatake, 1985.

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 7. Male genitalia of Tenomerga mucida. A) tegmen, dorsal view, B–D) penis, dorsal (B), ventral (C) and lateral (D) views, E) apical hook, lateral view, F) bifurcate process. ah—apical hook, ap—anterior projection of dorsal margin, bo—basal opening, dp—dorsal plate, ml—mesal lobe, pp—posterior projection of dorsal margin, vms—ventro-marginal spine.

FIGURE 9. Male genitalia of Tenomerga japonica. A, B) aedeagus, dorsal (A) and ventral (B) views, C) apical hook, lateral view, D) 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).