Acicnemis suturalis Roelofs, 1875

Figs 6 T 1–6, 2, 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 – 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).