New species of the genus Tomocerus (Tomocerina) from China (Collembola : tomoceridae) with a discussion of the subgenera of tomocerus

摘要

A new species Tomocerus (Tomocerina) yiliensis, from Xinjiang of northwest China is described. It is distinct from all other members of the subgenus because of the large number of setae on the trochanteral organ. The presence of more than one trochanteral organ seta forces a reexamination of the subgenera of Tomocerus, the subgenus Tomocerina, and the role of trochanteral organ setae in dividing subgenera of Tomocerus.