Physocypria kraepelini, Ma & Yu, 2020

Ma, Shunxin & Yu, Na, 2020, Freshwater ostracods (Crustacea) from Hainan Island, southern China, with description of a new species, Zootaxa 4767 (2), pp. 201-243 : 210

Physocypria kraepelini G. W. Müller, 1903

1903 Physocypria kraepelini n. sp. — G. W. Müller: 165, figs. 1–7.

2011 Cypria kraepelini comb. nov. — Karanovic: 13.

Material examined: Four females and three males from HK 2, one female ( ECNU 20170411/HN29) dissected; 120 females and 24 males from DZ13, one male ( ECNU 20170412/HN30) dissected; 42 females and 15 males from DZ14; one female from DZ16; ten females from DZ17; eight females from DZ18; 96 females from DZ19; 30 females from DZ22; 29 females from DZ23; 36 females from DZ24; 45 females from JN24; 14 females from JN25; six females from JN26; nine females from JN27; 34 females from JFL1; 14 females from JFL2; 53 females from JFL6; five females from JFL28; eight females and four female valves from SY2; 40 females from SY4; 14 females from YND1; 13 females from YND2; eight females from YND8; two females from WZS2; one female from WZS3; five females from WZS5; four females from WZS6; 29 females from WZS7; 87 females from WZS21; three females from WN1; 18 females from WN2; five females from WN3; 27 females from WN6; one female and one female valve from WN7; one female from WN8; one female from WN9; six females from QH1; six females from QH2; three females from QH3; four females from QH4; one female from QH5; ten females from WC3; 18 females from WC5; two females from WC6; three females from 11YND1; four females from 11WN6; three females from 11WC5.

Dimensions: Female, LV, n = 1, length 0.520 mm, height 0.360 mm. Male, RV, n = 1, length 0.578 mm, height 0.367 mm.

Distribution: This species has been reported from the Nearctic, Oriental and Palearctic regions ( Meisch 2000; Yu et al. 2010). In China, this species has been reported from Beijing ( Zhai & Zhao 2014), Guizhou ( Kong et al. 2013), Jiangsu ( Yu et al. 2005), Shanghai ( Yao et al. 2016), Yunnan ( Yu et al. 2010) and Zhejiang ( Ma & Yu 2018). This is the southernmost occurrence in China. On Hainan Island, P. kraepelini was the most common species found during our surveys, present in Danzhou, Haikou, Jianfengling National Forest Park, Qionghai, Sanya, Wanning, Wuzhi Mountain and Wenchang.