Haliplus (Liaphlus) basinotatus Zimmermann, 1924

Hayashi, Masakazu, Iwata, Tomofumi & Yoshitomi, Hiroyuki, 2023, Revision of the family Haliplidae (Insecta, Coleoptera) in Japan, ZooKeys 1168, pp. 267-294 : 267

Haliplus (Liaphlus) basinotatus Zimmermann, 1924

Figs 13 , 18F Japanese name: Kurohoshi-kogashira-mizumushi

Haliplus basinotatus Zimmermann, 1924: 137. Nakane 1963a: 55; 1987: 30; Vondel 1995: 119; Matsuo and Fukagawa 2016: 52; Mitamura et al. 2017: 139; Hayashi and Kadowaki 2019: 25; Nakajima et al. 2020: 22; Watanabe 2021: 16.

Haliplus (Liaphlus) basinotatus : Vondel 2003a: 31.

Haliplus basinotatus latiusculus Nakane, 1985: 63. Syn. nov.

Material examined.

Specimens examined in this study are listed in Suppl. material 1.

Measurements

(n = 10). TL 3.30-5.34 (4.88) mm; HW 0.78-0.88 (0.83) mm; CED 0.30-0.38 (0.35) mm; PL 0.71-0.75 (0.74) mm; PW 1.43-1.59 (1.52) mm; EL 2.54-2.86 (2.66) mm; EW 1.95-2.17 (2.06) mm; BT 1.60-1.74 (1.65) mm; HW/CED 2.27-2.62 (2.35); PW/PL 1.95-2.14 (2.05); EL/EW 1.24-1.32 (1.27).

Biology.

The larvae eat Characeae algae, and the adults were collected by sweep on shallow water ( Nakajima et al. 2020).

Immature stages.

A color illustration is given by Mitamura et al. (2017).

DNA barcodes.

The COI (Cox1) gene sequence of a Japanese specimen are deposited in DDBJ ( Hayashi and Ooi 2022): Shimane Prefecture (LC633206).

Discussion.

Nakane (1985) described a subspecies for Japanese population, but we could not find any differences between the Asian ( van Vondel 1995: fig. 53) and Japanese populations. In this paper we treat this subspecies as a junior synonym of nominotypical subspecies.

Distribution.

Japan: Hokkaido, Honshu, Shikoku, Kyushu, Oki, Tsushima; Korea, China, Far East Russia.

Figures

Figure 13. Haliplus basinotatus A habitus B head C prosternal process D penis E left paramere F right paramere. Scale bars: 1.0 mm (A); 0.5 mm (B); 0.25 mm (C); 0.1 mm (D-F).

Figure 18. Distribution maps based on specimens examined A Peltodytes intermedius B Peltodytes sinensis C Haliplus japonicus D Haliplus kamiyai (circle), Haliplus morii (star), Haliplus regimbarti (square) E Haliplus simplex (black circle), Haliplus angustifrons (white circle) F Haliplus basinotatus (black circle), Haliplus kotoshonis (white circle).