Acicnemis shibatai Voss, 1971

Lewis, Jake H., Kojima, Hiroaki & Campbell, Erin O., 2025, A Japan-focused review of East Asian Acicnemis Fairmaire, 1849 (Coleoptera, Curculionidae) reveals cryptic diversity in a well-studied region, ZooKeys 1259, pp. 103-167 : 103-167

publication ID	https://doi.org/10.3897/zookeys.1259.164450
publication LSID	lsid:zoobank.org:pub:EBA5ED95-FD65-42C6-8C7C-EFE17C1CEC77
DOI	https://doi.org/10.5281/zenodo.17574340
persistent identifier	https://treatment.plazi.org/id/F6287459-457D-5125-A8A1-2D3A16A2CFE4
treatment provided by	ZooKeys by Pensoft
scientific name	Acicnemis shibatai Voss, 1971
status

Treatment

Figs 6 P 1–6 View Figure 6 , 2 View Figure 2 , 27 View Figure 27

Type material examined

( Japan: 17; South Korea: 1; Taiwan: 2; Total: 20). Holotype. Japan: Kagoshima Prefecture: • Ikari , Amami-Oshima, 28. V. 1960, T. Shibata, KUM, bears red label that reads “ Holotype ” . Paratypes. Japan: Kagoshima Prefecture: • Ikari, Amami-Oshima , 6. V. – 4. VI. 1960, T. Shibata, JHL_AREV_444 – JHL_AREV_451 , JHL_ACITAI_064 (9, KUM), bear red label that reads “ Paratype ” .

Non-type material.

Japan: Chiba Prefecture: • Mt. Kiyosumi , 9. VI. 1963, K. Morimoto (1, KUM), JHL_AREV_459 ; • Mt. Kiyosumi , 14. VI. 1992, T. Ito (1, CMIC), CBM ZI 63020 ; Kagoshima Prefecture: • Yuwan , Amami-Oshima, 31. VII. 1963, Y. Hirashima (1, KUM), JHL_AREV_457 ; • Mt. Yuwan , Amami-Oshima, 30. VII. 1963, L. Gressitt (1 dissected male, KUM), JHL_ACITAI_070 ; • Ishihara-rindo , 9–11. VI. 1978, R. Noda (1, KUM), JHL_AREV_458 ; • Mikyo, Tokunoshima , 27. VII. 1963, Y. Hirashima (1, KUM), JHL_AREV_453 ; • Nishinakama , Amami-Oshima, 2. VI. 1970, H. Makihara, (1, KUM), JHL_AREV_776 ; Okinawa Prefecture: • Shirahama , Iriomote Island, 31. VIII – 5. IX. 1969, H. Makihara (1, KUM), JHL_AREV_452 ; South Korea • Kwangnung , Pochon-gun, Kyonggi-do, 16–19. VII. 1992, K. Morimoto (1, KUM), JHL_AREV_419 ; Taiwan • Wulai , 27. V. 1965, K. Morimoto (2, KUM), JHL_AREV_455 , JHL_AREV_456 .

Diagnosis.

Body length 3.0– 3.8 mm. Covered in dark and pale brown, white, and black scales, with a white-scaled, V-shaped band in the center of the elytron. Pronotum lacking distinct longitudinal, impunctate midline (present in A. koguma ). Scutellum covered in pale scales. Elytra with erect scales only on odd intervals. Sclerolepidia distinct and protruding. Third tarsomeres emarginate. Pedon tube-shaped with lateral edges approx. parallel in dorsal view, but sinuating evenly into a blunt, rounded point. Internal sac with a small sclerotized structure posteriorly, and two prong-like structures anteriorly at its apex (Fig. 6 P 1 View Figure 6 – 2 View Figure 2 ).

Distribution.

This species occurs in Japan (mainland, Ryukyu Islands south to Amami-Oshima), South Korea, and Taiwan.