Copelatus malaisei Guignot 1954
Creators: name: Jiang, Zhuo-Yin
name: Zhao, Shuang
name: Yang, Zhen-Yu
name: Jia, Feng-Long
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Copelatus
Copelatus malaisei

description: Copelatus malaisei Guignot, 1954
(Figs 9–10, 41–42)
Copelatus malaisei Guignot, 1954: 566.
Type locality. “Kambaiti” [Myanmar, Kachin State, Kambaiti Pass, ca. 25°24′N 98°09′E].
Type material. Holotype ♂ (NHRS), labelled: “N. E. BURMA / Kambaiti. 7000 ft. [p] / 5/4 1934 [hw] / R. MALAISE [p] // 5684 / E91 + [blue label, p] // Type [red label with black frame, p] // F. Guignot det., 19 [p] 53 [hw] / Copelatus / malaisei Guign / Type ♂ [hw] // NHRS-JLKB / 000027122”. Allotype ♀ (NHRS), labelled: “N. E. BURMA / Kambaiti. 7000 ft. [p] / 8/4 1934 [hw] / R. MALAISE [p] // 5685 / E91 + [blue label, p] // Allotype [red label with black frame, p] // F. Guignot det., 19 [p] 53 [hw] / Copelatus / malaisei Guign / Allotype ♀ [hw] // NHRS-JLKB / 000027123”.
Additional material examined. CHINA: Yunnan: 1 ♂, Gaoligong Mts., 24.57N 98.45E, 2200-2500 m, 8.- 16.v.1995, V. Kubáň leg. (ZSMG); 5 ♂, 1 ♀, Gaoligong Shan Mts., 30 km E Tengchong, 2800 m, meadow, helocrene spring, muddy pools, 24.x.1999, J. Šťastný leg. (JSCL, NMPC); 1 ♂, 4 ♀, 14 km SE Tengchong, Renjiafen env., 24°56.0-5′N 98°35.0-7′E, 2025-2145 m, shallow pool with clayey bottom, 23.vi.2016, J. Hájek & J. Růžička leg. (NMPC); 10 ♂, 7 ♀, Baoshan, Gaoligong Nature Park, 24.91N 98.81E, 1751 m, 22.v.2016, Y. Tang & R. Zhang leg. (SYSU); 2 ♂, 5 ♀, Tengchong, Houqiao Town, Xintang, 25.1303N 98.2572E, 1974 m, 12.v.2021, Z. Jiang, Z. Yang & Z. Mai leg. (SYSU).
Diagnosis. Larger (TL: 5.1–5.7 mm), oblong-oval species. Head brownish black, usually with reddish clypeus and two oval spots on vertex; pronotum brownish black, laterally broadly testaceous and with testaceous translucent anterior margin; elytra brown with somewhat paler base. Pronotum with only very few short longitudinal strioles laterally. Each elytron with six complete discal striae and one submarginal stria: striae 5–6 beginning slightly posteriorly from base; stria 1 longest, ending close to apex, odd striae somewhat longer than even ones; stria 6 shortest, ending at apical fourth; submarginal stria long, beginning before elytral mid-length and ending at apical fourth (Fig. 9). Median lobe of aedeagus in lateral view simple, sickle shaped, regularly curved to bluntly pointed apex (Fig. 41). Parameres moderately broad, ‘C’-shaped; apex short and broad; apical lobes long, club-shaped (Fig. 42). Females dimorphic; striolate form with whole pronotum and elytra except for apex densely covered with short irregular longitudinal strioles (Fig. 10).
Collection details. At the locality Renjiafen, C. malaisei was collected in ruderal habitat, in a small (diameter ca. 1 m), temporary pool with clayey bottom and dense vegetation; the species was syntopical there, although less abundant, with C. diversistriatus sp. nov. In Tengchong, C. malaisei was found in a marsh with dense emergent water macrophytes (Fig. 79).
Distribution. A species occurring in the northeastern Myanmar (Kachin State) and western Yunnan, China (Gaoligong Shan Mts.). First record from China (Fig. 81).
description: Published as part of Jiang, Zhuo-Yin, Zhao, Shuang, Yang, Zhen-Yu, Jia, Feng-Long & Hájek, Jiří, 2022, A review of Copelatus Erichson, 1832 of Mainland China, with description of ten new species from the japonicus complex (Coleoptera: Dytiscidae: Copelatinae), pp. 251-295 in Zootaxa 5124 (3) on pages 260-261, DOI: 10.11646/zootaxa.5124.3.1, http://zenodo.org/record/6410696