Acicnemis dividicincta okinawana Morimoto & Miyakawa, 1995

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

Acicnemis dividicincta okinawana Morimoto & Miyakawa, 1995

Figs 1 , 14

Type material examined

( Japan: 13). Holotype. Japan: Okinawa Prefecture: • Hiji , Kunigami-son, Okinawa Island, 8. VII. 1974, T. Mikage, bears red label reading “ (HOLOTYPE) Acicnemis dividicincta okinawana Morimoto et. Miyakawa, 1995 ”, JHL_SYN_110 , ELKU, ELKU 2958 . Paratypes. Japan: Kagoshima Prefecture: • Torigamine , Amami Island, 30. VI. 1976, N. Morishimo (1, KUM), JHL_SYN_104 ; Okinawa Prefecture: • Hiji , Kunigami-son, Okinawa Island, 3–9. VII. 1974, T. Mikage (5, KUM), JHL_SYN_101 (dissected male), JHL_SYN_103 , JHL_SYN_105 – JHL_SYN_107 .

Non-type material.

Japan: Kagoshima Prefecture: • Mt. Yuwandake, Amami-Oshima , 5–9. VII. 1968, K. Sakai (1, CMIC), CBM-ZI 68475 ; Okinawa Prefecture: • Tancha , 1–7. VI. 2022, J. H. Lewis (1, OIST), JHL_DNA_126 (GenBank accession number: PV 255626 ) ; • Tancha , Onna-son, Okinawa Island, 2. VI. 2022, sweeping coastal vegetation, J. H. Lewis (1, OIST), JHL_SYN_109 ; • Yona , Okinawa Island, 19. X. 1973, S. Azuma (1, RUMC), JHL_SYN_108 ; • Tancha , Onna-son, Okinawa Island, 29. VIII. 2025, J. H. Lewis, to residential lights (1, OIST), JHL_AREV_2082 ; • Oku , Okinawa Island, 26.83604°N, 128.27191°E, 5–19. VIII. 2016 (1, OIST), OKENT 0089525 (GenBank accession number: PV 255627 ) .

Diagnosis.

Body length 4.8–6.5 mm. Identical to A. dividicincta dividicincta above, differing from that species only in possessing somewhat paler gray scales.

Distribution.

This subspecies occurs on Amami-Oshima ( Kagoshima Prefecture) and Okinawa Island ( Okinawa Prefecture).

Remarks.

We continue to recognize this subspecies as it is significantly isolated from the mainland populations and therefore presumably does represent a distinct intraspecific lineage.

Figures

Figure 1. Maximum likelihood tree of twelve Acicnemis species based on a 300 base-pair long CO 1 gene fragment constructed in IQ-TREE v. 1.6. 12 using a GTR + F + I + G 4 model. Branch support values represent standard nonparametric bootstraps (1000 replicates). Bootstrap values less than 75 are not displayed on the tree. The codes MEBLA 191-14, VVGPL 2845-15, and OWEVG 891-15 are BOLD Systems accession numbers, whereas all other codes are GenBank accession numbers. Associated Acicnemis weevil figures on the right of the tree are approximately to scale.

Figure 14. Acicnemis dividicincta okinawana Morimoto & Miyakawa, 1995 (JHL _ SYN _ 106). A. Lateral; B. Dorsal. Scale bar: 1 mm.