Copelatus rimosus Guignot, 1952

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), Zootaxa 5124 (3), pp. 251-295 : 268-269

Copelatus rimosus Guignot, 1952

( Figs 19 , 55–56 )

Copelatus rimosus Guignot, 1952: 27 .

Type locality: “Chine: Yunnan. Yunnan-Fou” [ China, Yunnan Province, Kunming , ca. 24°53′N 102°48′E] .

Type material. Holotype ♂, deposited in MNHN; studied by one of us ( JH) during previous visit in the museum.

Additional material examined. CHINA: Guizhou: 10 ♂, 11 ♀, 10 km W Liupanshui City , ca. 1800 m, 27.vii.1997, M. Wang leg. ( NHMW, NMPC) . Yunnan: 1 ♂, Copper Temple , 4mi. N of Yunnanfu, 6000-6500 ft., 27.viii.1934, E.H. Tinkham leg. ( SYSU) ; 1 ♂, 2 ♀, 100 km W of Kunming, Diaolin Nat. Res. , 22.v.-2.vi.1993, E. Jendek & O. Šauša leg. ( NHMW) ; 3 ♂, 2 ♀, Baoshan env., 5.-8.vi.1993, E. Jendek & O. Šauša leg. ( NHMW) ; 2 ♂, 1 ♀, 20 km N Lijiang, Baishui , 2800 m, gravely muddy stream, 21.x.1999, J. Šťastný leg. ( JSCL) ; 1 ♂, 4 ♀, Kunming, nr. Panlong River , ca. 1800 m, 2.xi.1999, M. Jäch et al. leg. ( NHMW, NMPC) ; 7 spec., Kunming, Botanical Garden , 1800 m, 4.xi.1999, M. Jäch et al. leg. ( NHMW, NMPC) ; 13 spec., Chuxiong Pref., 30 km N Lufang, Wu Tai Shan Forest Park , ca. 2100 m, 26.xi.1999, H. Schönmann & M. Wang leg. ( NHMW, NMPC) ; 11 spec., 1 km S Shizong , veg. rich bay of large lake, 11.ix.2000, J. Bergsten leg. ( NMPC, ZSMG) ; 2 ♂, 1 ♀, Dali City, Erhaiyue Wetland Park , 25.6194N 100.2272E, 1937m, 18.v.2021, Z. Jiang, Z. Yang & Z. Mai leg. ( SYSU) ; 1 ♂, 1 ♀, Eryuan County, Luoshijiang Ecological Wetland , 25.9528N 100.1020E, 1934m, 19.v.2021, Z. Jiang, Z. Yang, Z. Mai & B. Huang leg. ( SYSU) .

Diagnosis. Larger (TL: 5.0– 5.9 mm), oblong-oval species. Head brown usually with paler clypeus and two oval spots on vertex; pronotum brown with broadly testaceous anterior margin and lateral sides; elytra brown with rather indistinct thin, comb-like shaped basal orange band not reaching suture. Pronotum with short longitudinal strioles laterally. Each elytron with six complete discal striae and one submarginal stria: striae 1, 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. 19 ). Median lobe of aedeagus in lateral view in shape of letter “Γ”, broad in basal half and slender in apical half, in mid-length with distinct trapezoidal process on ventral side; apex pointed, turned dorsally ( Fig. 55 ). Parameres moderately broad, ‘C’-shaped; apex short and broad; apical lobes long, club-shaped ( Fig. 56 ). Female similar to male, elytral reticulation slightly more impressed. Strioles on pronotum more numerous, elytra with short strioles laterally from stria 4.

Collecting details. The species seems to inhabit wide spectrum of both, stagnant and running water habitats. It was collected in a gutter together with C. felicis sp. nov., in vegetated bank of a reservoir together with C. miaowangi sp. nov., as well as in artificial ponds or vegetated bay of a large lake ( Fig. 76 ).

Distribution. A species endemic to China, so far known form several localities in northern half of Yunnan, and one locality in western Guizhou; first record from Guizhou province ( Fig. 82 ).

Figures

FIGURE 82. Map of distribution of Copelatus in China Mainland.

FIGURES 17–20. Habitus of Copelatus in China. 17. C. puzhelongi sp. nov. (holotype ♂; Pu’er, Yunnan); 18. C. puzhelongi sp. nov. (paratype ♀; Pu’er, Yunnan); 19. C. rimosus (♂; Dali, Yunnan); 20. C. rosulae (paratype ♂; Pianma, Yunnan). Scale bar 1 mm.

FIGURES 51–62. Male genitalia of Copelatus. 51, 53, 55, 57, 59, 61. median lobe in lateral view; 52, 54, 56, 58, 60, 62. paramere. 51–52. C. parallelus (Yushuwan, Hunan); 53. C. puzhelongi sp. nov. (a. holotype, Pu’er, Yunnan; b. Huanglianshan, Yunnan; c. Houaphanh, Laos); 54. C. puzhelongi sp. nov. (holotype, Pu’er, Yunnan); 55–56. C. rimosus (Dali, Yunnan); 57. C. rosulae sp. nov. (a. holotype, Pianma, Yunnan; b. Kongshu, Yunnan); 58. C. rosulae sp. nov. (Kongshu, Yunnan); 59–60. C. sociennus (Hengqin Island, Guangdong); 61–62. C. tenebrosus (Hengqin Island, Guangdong). Scale bar 0.5 mm.

FIGURES 71–78. Habitat of Copelatus in China. 71. Tianmushan, Zhejiang (C. chinensis); 72. Jinggangshan, Jiangxi (C. dentatipenis sp. nov.); 73. Tongbiguan, Yunnan (C. diversistriatus sp. nov.). 74. Dadongshan, Guangdong (C. nanlingensis sp. nov.); 75. Macao (C. oblitus in wet soil); 76. Dali, Yunnan (C. rimosus); 77. Kongshu, Yunnan (C. rosulae sp. nov.); 78. Danxiashan, Guangdong (C. oblitus and C. zimmermanni).