Peltodytes sinensis (Hope, 1845)

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

Peltodytes sinensis (Hope, 1845)

Figs 3 , 18B Japanese name: Shina-kogashira-mizumushi

Haliplus sinensis Hope, 1845: 15.

Peltodytes sinensis : Kamiya 1936: 40; Satô 1985: 181; Nakane 1987: 27; Vondel 1995: 124; 2003a: 33; Aoyagi 2011a: 99; 2011b: 107; Matsuo and Fukagawa 2016: 51; Mitamura et al. 2017: 137; Aoyagi 2019: 34; Nakajima et al. 2020: 18; Aoyagi 2020: 87; Uchida et al. 2021: 183.

Material examined.

6 exs., Kagoshima Prefecture: Ohtsukan, Okinoerabu-jima, 3.VIII.1958, S. Ueno & Y. Morimoto leg. (EUMJ); 1 ex., Kagoshima Prefecture: Uchida, near, Taniyama, Okinoerabu-jima, 4.VIII.1958, S. Ueno & Y. Morimoto leg. (EUMJ). Other specimens are listed in Suppl. material 1.

Measurements

(n = 10). TL 3.06-5.21 (4.76) mm; HW 0.75-0.82 (0.78) mm; CED 0.20-0.25 (0.22) mm; PL 0.63-0.80 (0.71) mm; PW 1.46-1.68 (1.58) mm; EL 2.43-2.76 (2.58) mm; EW 1.91-2.30 (2.12) mm; BT 1.46-1.76 (1.62) mm; HW/CED 3.26-3.73 (3.49); PW/PL 2.01-2.40 (2.21); EL/EW 1.17-1.28 (1.21).

Biology.

This species usually lives in still, shallow waters such as ponds and paddies, and the adults were collected by sweep netting in shallow water and using light traps ( Nakajima et al. 2020).

Immature stages.

Unknown.

Distribution.

Japan: Tsushima, Nansei shoto (Nakano-shima and Takara-jima of Tokara-retto, Amami-Ôshima, Kakeroma-jima, Tokuno-shima, Okinoerabu-jima (new record), Yoron-jima, Okinawa-jima, Yagaji-shima in Okinawa, Miyagi-jima in Okinawa, Iheya-jima, Kume-jima, Miyako-jima, Ikema-jima in Okinawa, Irabu-jima in Okinawa, Ishigaki-jima, Iriomote-jima, Yonaguni-jima); Korea, China, Taiwan, SE Asia.

Figures

Figure 3. Peltodytes sinensis 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).