Acicnemis kiotoensis Nakane, 1963

Figs 2 C, 3 B, 4 A, 6 F 1–6, 2, 16

Type material examined

(Japan: 73; Taiwan: 4; Total: 77). Holotype. Japan: Kyoto Prefecture: • Kurama, 17. VI. 1954, T. Nakane, bears red label reading “ HOLOTYPE ”, bears pink label reading “ 185-5 ”, Syst. Ent. Hokkaido Univ Japan SEHU 0000005125, HUM . Paratype. Japan: Kagoshima Prefecture: • Yakushima Island, Miyanoura, 28. IV. 1954, Y. Kurosawa, bears red label reading “ PARATYPE ” (1, HUM) .

Non-type material.

Japan: Kagoshima Prefecture: • Kirishima, 18. IX. 2007, J. Aoki (2, KUM), JHL_AREV_161, JHL_AREV_162 ; • Mt. Kirishima, 22. VII. 1956, J. Nagao, (1, KUM), JHL_AREV_775 ; • Amami Oshima, Hatsuno, 25. V. 1960, T. Shibata (1, KUM), JHL_AREV_177 ; • Chuorindo, Amami Oshima, 27. VI. 1980, A. Izumi (1, LBM), LBM 5117 ; • Chuorindo, Amami Oshima, 30. VI. 1980, Yoshikawa (1, LBM), LBM 5119 ; • Hatsuno, Amami Oshima, 1–8. VII. 1973, M. Ito (1, LBM), LBM 5130 ; • Yuwan, Amami Oshima, 7. VIII. 1964, M. Nagai (1, HUM), JHL_AREV_645 ; • Amami Oshima, 21. VII. 1955, T. Shirozu (1, KUM), JHL_AREV_660 ; • Ishihara-rindo, Amami Oshima, 9–11. VI. 1978, R. Noda (1, KUM), JHL_AREV_661 ; • Nonigawa, Amami Oshima, 17. VI. 1963, J. Nagao (1, KUM), JHL_AREV_662 ; • Hatsuno, Amami Oshima, 27. V. 1960, T. Shibata (1, ZMH), ZMH 837205 ; • Yudomari-rindo, Yakushima Island, 26. VII. 1982, A. Seki (2, LBM), LBM 5120, 5121 ; • Miyanoura, Yakushima Island, 17. VII. 1968, H. Nomura (1, LBM), LBM 5124 ; • Miyanoura, Yakushima Island, 21–22. VII. 1974, K. Emoto (2, LBM), LBM 5126, 5127 ; • Miyanoura, Yakushima Island, 15–26. VII. 1972, H. Huzita (2, LBM), LBM 5129, 5131 ; • Miyanoura, Yakushima Island, 26–29. VII. 1974, T. Mikage (5, KUM), JHL_AREV_648 – JHL_AREV_650 ; • Miyanoura, Yakushima Island, 29. VIII. 1952, Takeya & Hirashima (1, KUM), JHL_AREV_653 ; • Miyanoura, Yakushima Island, 18. VI. 1975, Y. Kurosawa (1, NMNS), JHL_AREV_679 ; • Okawa-rindo, Yakushima Island, 1–2. VIII. 1974, T. Mikage (2, KUM), JHL_AREV_646, JHL_AREV_647 ; • Okawa, Yakushima Island, 22. VII. 1975, H. Akiyama (1 dissected male, NMNS), JHL_AREV_157 ; • Shiratani, Yakushima Island, 26–30. VII. 1979, M. Miura (8, HUM), JHL_AREV_634 – JHL_AREV_641 ; • Shiratani, Yakushima Island, 24–25. VII. 1974, T. Mikage (5, KUM), JHL_AREV_657 – JHL_AREV_659 ; • Kosugidani, Yakushima Island, 19. VII. 1974, T. Mikage (1, KUM), JHL_AREV_656 ; • Kosugidani, Yakushima Island, 23. VII. 1950, T. Shirozu (1, KUM), JHL_AREV_655 ; • Kosugidani, Yakushima Island, 9. – 10. VII. 1952, Y. Kurosawa (4, NMNS), NSMT-I-C 10267 –10269, NSMT-I-C 10301 ; • Hanayama Natural Forest, Yakushima Island, 21. VIII. 1983, Sk. Yamane (3, HUM), JHL_AREV_642 – JHL_AREV_644 ; • Mt. Hoyoshi, Minamiosumi-cho, 24–25. III. 2018, R. Ito (1, KUM), JHL_AREV_840 ; • Mt. Yuwan, Amami-Oshima, 30. VII. 1963, L. Gressitt (1 dissected male, KUM), JHL_SYN_152 ; Kyoto Prefecture: • Mt. Kurama, 30. V. 1982, K. Masaki (1, LBM), LBM 5118 ; • same locality, 8. X. 1978, K. Masaki (1, LBM), LBM 5122; Miyazaki Prefecture: • Miyakonojo-shi, Natsu-cho, Miike, 22. VI. 2019, R. Ito (1, KUM), JHL_AREV_175 ; • Mt. Aoidake, 7. VIII. 1974, K. Morimoto (1 dissected male, KUM), JHL_DNA_147 ; Nagasaki Prefecture: • Mt. Taterasan, Izuhara, Tsushima Island, 24–27. VII. 1985, A. Saito (15, CMIC), CBM–ZI 68476 –68490 ; • Mt. Tatera, Tsushima Island, 18–20. V. 1961, H. Kamiya (2, KUM), JHL_AREV_651, JHL_AREV_652 ; Nara Prefecture: • Kasugayama, 25. VII. 1981, K. Masaki (1, LBM), LBM 5116 ; • Kasugayama, 10. V. 1964, K. Kinugasa (1, LBM), LBM 5133 ; • Kasugayama, 20. V. 1951, K. Sawada (1, KUM), JHL_AREV_654 ; • Mt. Kasuga, 9. V. 1952, K. Sawada (1 dissected male, KUM), JHL_SYN_153 ; Okinawa Prefecture: • Okinawa Island, Yonahadake, 8–29. VI. 1977, H. Irie (2, KUM), JHL_AREV_172, JHL_AREV_173 ; • Iriomote Island, Shirahama, 23–24. VI. 1970, H. Makihara (2, KUM), JHL_AREV_158, JHL_AREV_159 ; • same locality, 31. VIII – 5. IX. 1969, H. Makihara (6, KUM), JHL_AREV_163 – JHL_AREV_168; • same locality, 26. VII. 1963, Y. Miyatake (1, KUM), JHL_AREV_169; • Okinawa Island, Yona, 9–13. VIII. 1969, H. Makihara (1, KUM), JHL_AREV_176 ; • Iriomote Island, Nakara River, 25–28. VI. 1970, H. Makihara (2, KUM), JHL_AREV_170, JHL_AREV_171 ; • Iriomote Island, Taketomi-cho, Mt. Tedo, 2. X. 2017, K. Narita (1, KUM), JHL_AREV_174 ; • Iriomote Island, 28. VI. 1978, M. Kinjo (1, RUMC), JHL_AREV_524 ; • Iriomote Island, Funaura, 8. X. 1977, M. Arasaki (1, RUMC), JHL_AREV_525 . Taiwan • Mt. Hsin Kao, 1. VII. 1961, S. Ueno, JHL_AREV_160 (1, KUM) ; • Meifeng, 15. V. 1983, H. Townes (1, CMNC), JHL_AREV_667 ; • Anmashan, Taichung Hsien, 11–15. V. 1992, A. Smetana (2, CMNC), JHL_AREV_707, JHL_AREV_708 .

Diagnosis.

Body length 4.5–7.0 mm. Covered in pale and dark brown scales, with two obliquely shaped pale brownish, black-bordered spots across middle of elytra. Second funicular antennomere longer than funicular antennomeres 3 + 4 (Fig. 2 C) (compare with A. koguma, which has the second funicular antennomere shorter than funicular antennomeres 3 + 4). Pronotum lacking impunctate longitudinal midline (present in A. koguma). Scutellum diagnostic: large, shiny, and lacking scales (Fig. 3 B). Odd and 2 nd elytral intervals with erect scales (scales beginning at middle of elytra on 2 nd interval; from elytral base on odd intervals). Sclerolepidia indistinct, forming low, rounded, non-protruding tubercles (Fig. 4 A). Third tarsomeres emarginate (not truncate as in A. koguma). Pedon with lateral edges approx. parallel in dorsal view but converging evenly into a wide, blunt point. Internal sac not visible inside the aedeagus, but with a non-hooked protruding structure (unmodified in posterior 1 / 2, with roughened in anterior 1 / 2) that is clearly longer than the pedon (Fig. 6 F 1 – 2).

Distribution.

This distinctive species occurs in Japan (mainland, throughout the Ryukyu Islands) and Taiwan.