In this paper, an eyed new species of genus Sinella is described. It is identified by 2＋2 ommatidia transverse arranged, dorsal body（except Abd. Ⅴ-Ⅵ ） scattered with brown spots, mac a2 present on Abd. Ⅱ, 3 mac on central and 5 on lateral of Abd. Ⅳ. Illustrations and detailed differences between 2＋2 ommatidia transverse arranged species are provided.
Homidia triangulimacula sp. nov. is described from Tiantong National Forest Park, Zhejiang Province. It can be easily discriminated from other species of Homidia by triangular dark patch on dorsal central mesothorax, labial chaeta M replicated and labial basal and posterior labial chaetae expanded, 6＋6 macrochaetae on posterior abdominal segment IV, and middle S-chaeta posterior to macrochaeta m3 on abdominal segment V. A detailed morphological character comparison and a key to species with chaetae expanded on labium or posterior labium in Homidia are provided here.
Anew species Homidiapseudosinensis sp. nov. from southeast China is described. This new species can be easily identified by posterior Th. II with a roughly M-shaped transverse band, labial setae and chaetotaxy of Abd. IV. Illustrations and a key to species of this genus from Fujian Province are provided.
A new species, Homidia mediofascia sp. nov., from West China is described. It is easily separated from the other Homidia species by the median longitudinal stripe from Th. Ⅱ to Abd. Ⅱ, the macrochaeta al on Abd. Ⅰ, 7＋7 macrochaetae on posterior side of Abd. Ⅳ, and four smooth setae on posterior side of the ventral tube. A table on characters of five closely related Homidia species is provided.
A new species, Homidia xianjuensis sp. nov. from eastern China, was described. It can be identified by head dark including ventral side, except ＂Y＂-shape unpigmented patch on dorsal central head, one interrupted stripe on each sub-lateral thorax to abdominal segment I, chaetotaxy of labium and abdominal segment I and IV–V. Illustrations of the second instar larvae of this new species were also provided.
