Sinella umesaoi Yosii, 1940

Figs 9, 57, Table 2

Type locality. Japan, Hokkaido.

Material examined. Female on slide and 4 in alcohol, China: Jilin Province: Changchun City: Northeast Changchun City Urban Wetland Park, 43.986°N, 125.36°E, alt. 217 m, 31.viii.2013, in litter, F Zhang and X Sun leg. (# 2013 DBCC); female on slide and numerous in alcohol, China, Jilin Province, Gongzhuling City, Jilin Academy of Agricultural Sciences, 43.50°N, 124.817°E, alt. 114 m, in farmland, 15.ix.2013, X Sun leg.

Additions to original description. Clypeus with 7 ciliate chaetae, outer two much smaller (Fig. 57). Cephalic groove with 6 chaetae, anterior three smooth and posterior three ciliate.

Distribution. Jilin, Shandong (China); Japan; Korea.

Remarks. S. umesaoi resembles Entomobrya species in appearance because of its grey coloration, while other Sinella species have no or orange pigments. More comparison with other two 5+5 eyed species sees above remarks (Table 2) and Pan et al. (2012).