Platynectes hainanensis Nilsson, 1998

Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long & Šťastný, Jaroslav, 2023, Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae), Zootaxa 5227 (4), pp. 401-425 : 409

Platynectes hainanensis Nilsson, 1998

( Figs 3D , 7A–B , 9A , 11B )

Platynectes hainanensis Nilsson, 1998: 110 (orig. descr.); Šťastný 2003: 246 (notes).

Type locality. “ China, Hainan, 30km E Maoyang, Wuzhi Shan Resort ”, ca. 18.9092N, 109.6776E, 700–800 m.

Type material. Holotype ♂, deposited in IAECAS.

Material examined. CHINA: Hainan: 1 ♀, Jianfengling Mt. ( Five ), 25.vi.1981, light trap, H. Rao leg. ( SYSU) ; 5 ♂, 4 ♀, Limushan Mt., Limu Temple , 5.v.2011, S. Zhao leg. ( SYSU) ; 6 ♂, 3 ♀, main peak of Limushan Mt. , 6.v.2011, S. Zhao leg. ( SYSU) ; 2 ♂, third and fifth divisions of Jianfengling Mt. , 9.v.2011, S. Zhao leg. ( SYSU) ; 6 ♂, 2 ♀, Changjiang County, Bawangling Mt., Bawang Stone Sea , 19.0814N, 109.1233E, 550 m, 22.v.2022, Z. Jiang leg. ( SYSU) .

Notes. Habitus and male genitalia are given in Figs 3D and 7A–B .

Collection details. Platynectes hainanensis was collected at stream bottoms among decaying leaves in Limushan Mt. (Hainan) ( Fig. 9A ).

Distribution. Known only from the Hainan Province, China ( Fig. 11B ).

Figures

FIGURE 3. Habitus of Platynectes species. (A) P. dissimilis (Sharp) (♂; Gutianshan, Zhejiang); (B) P. gemellatus Šťastný (♂; Nanling, Guangdong); (C) P. gemellatus Šťastný (♂; Gutianshan, Zhejiang); (D) P. hainanensis Nilsson (♂; Limushan, Hainan). Scale bar = 2.0 mm.

FIGURE 7. Male genitalia of Platynectes species. (A, C–D, F, H, J) median lobe in lateral view; (B, E, G, I, K) paramere. (A–B) P. hainanensis Nilsson (Limushan, Hainan); (C) P. kashmiranus lemberki Šťastný (Pianma, Yunnan); (D–E) P. kashmiranus lemberki Šťastný (Mêdog, Xizang); (F–G) P. major Nilsson (Lvchun, Yunnan); (H–I) P. nanlingensis Šťastný (paratype; Ruyuan, Guangdong); (J–K) P. rihai Šťastný (Taishan, Shandong). Scale bars = 0.5 mm.

FIGURE 9. Habitat of Platynectes species. (A) Limushan, Hainan (P. hainanensis); (B) Pianma, Yunnan (P. kashmiranus lemberki); (C) Lvchun, Yunnan (P. major); (D) Huanglianshan, Yunnan (P. pangu sp. nov.).

FIGURE 11. Maps of distribution of Platynectes species in China. (A) P. gemellatus; (B) P. hainanensis.