An additional larval type in the genus Chironomus – the yama-type.

Abstract

Recently, one of us (DSC) collected very similar larvae from Manipur, India. While the full details of this Indian species have yet to be clarified, it is clear that it is not in the genus Yama, but in Chironomus, although possibly a new subgenus. Under the current classification, this larva would be a salinarius-type, since it lacks lateral and ventral tubules. However, it is recognizably different from all other salinarius-type larvae, and indeed all other larval-types, in the greater length of the posterior prolegs (about 4 times longer than wide cf. about 2 times longer than wide) and the star-like arrangement of the anal tubules (Fig. 1).