Acicnemis suturalis Roelofs, 1875

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.17574346
persistent identifier	https://treatment.plazi.org/id/CDF7E382-0987-565C-A937-4527DCFB4285
treatment provided by	ZooKeys by Pensoft
scientific name	Acicnemis suturalis Roelofs, 1875
status

Treatment

Acicnemis suturalis Roelofs, 1875 View in CoL

Figs 6 T 1–6 View Figure 6 , 2 View Figure 2 , 31 View Figure 31

Type material examined

( Japan: 24). Holotype. Japan: Hyogo Prefecture: • Kobe , “ 1910–320 ”, G. Lewis, NHMUK 015026634 , bears a circular, white and red label reading “ Type H. T. ” .

Non-type material.

Japan: Aomori Prefecture: • Nei, Misawa-shi , 8. VI. 2010, K. Morimoto (1, KUM), JHL_AREV_507 ; Chiba Prefecture: • Nagara, Chosei-gun , 12. VI. 1988, M. Satoshi (2, CMIC), CBM ZI 159815 , 159816 ; Gunma Prefecture: • Minakami , 6–7. VI. 2008, K. Morimoto (6, KUM), JHL_AREV_504 , JHL_AREV_505 ; Ehime Prefecture: • Mt. Takanawa, Matsuyama-shi , 11–12. VIII. 2015, K. Kuroda (1, KUM), JHL_AREV_506 ; Fukuoka Prefecture: • Mt. Wakasugi ( Chikuzen ), 23. V. 1954, K. Morimoto, JHL_AREV_422 , JHL_AREV_423 , JHL_ACITAI_092 (dissected male) (3, KUM) ; • Mt. Hiko , 15. VII. 1955, H. Kamiya, JHL_AREV_424 ; Hyogo Prefecture: • Kobe, Mt. Maya , 3. IX. 1963, K. Morimoto, JHL_AREV_421 (1, KUM) ; Kanagawa Prefecture: • Mimasutoge , 6. V. 1990, H. Takizawa (1, HUM), JHL_AREV_632 ; • Hatano , 7. VI. 1983, H. Takizawa (1, HUM), JHL_AREV_633 ; Kyoto Prefecture: • Katsura-gawa , 12. VI. 1918, M. Suzuki, JHL_AREV_425 (1, KUM) ; • Kyoto University Ashu Forest , Miyama-cho, Tanann City, 23. V. 2009, K. Morimoto (1, KUM), JHL_AREV_503 ; Tochigi Prefecture: • Nanma, Kanuma , 4. V. 1993, H. Takizawa (1, HUM), JHL_AREV_631 ; Niigata Prefecture: • Kamikawa-cho , 3. VI. 2000, K. Takahashi (2, KUM), JHL_AREV_508 .

Diagnosis.

Body length 4.0– 4.7 mm. Covered in pale brown, dark and pale gray, pale yellow, and black scales, with two small white spots on the elytra (one on each side) in the apical 1 / 2 of the elytra. Pronotum lacking impunctate longitudinal carina (present in A. koguma ). Scutellum covered in pale scales. Elytra with erect scales only on odd intervals. Sclerolepidia distinct and protruding. Third tarsomeres distinctly emarginate. Pedon with lateral edges converging in dorsal view, sinuating into an elongate, tapered tip. Internal sac protruding from aedeagus, and with two cylinder-shaped sclerotized structures anteriorly at the apex (Fig. 6 T 1 View Figure 6 – 2 View Figure 2 ).

Distribution.

This distinctive species occurs in Japan (mainland), Taiwan, and has also been reported from South Korea and the Kuril Islands ( Russia) ( Park et al. 2009; Alonso-Zarazaga et al. 2023).