1870 Polycheles stevensoni nov. sp. — Brady & Robertson: 25 –26, pls. 7 (1–7), 10 (4–14).
1885 Darwinula stevensoni— Brady & Robertson: 346.
Materials examined: One female from JFL3, one female ( ECNU 20170413/HN50) dissected; 40 females and five female valves from JFL24; four females and three female valves from SY3; three females from YND6; one female from YND12; one female valve from YND14; five females from WN3; two females and two female valves from WN4; one female from QH4; two females from 11JFL11; one female from 11JFL24; 14 females from 11SY3; two females from 11WZS4.
Dimensions: Female, LV, n = 1, length 0.560 mm; RV, n = 1, length 0.533 mm.
Distribution: This species has been reported from all continents except Antarctica ( Karanovic 2012). This species was found in Jianfengling National Forest Park, Sanya, Qionghai, Wanning and Wuzhi Mountain on Hainan Island.