On the morphology and ecology of the previously unknown larva of the short-palped crane fly Nasiternella varinervis (Zetterstedt, 1851) (Diptera, Pediciidae)

摘要

The larval morphology of the crane fly Nasiternella varinervis (Zetterstedt) is described for the first time. The larva is closely related to that of Tricyphona immaculata Mg. in the structure of the stigmal plate, but differs in the presence of creeping welts on abdominal segment III; the medial teeth of the hypostomal plate of Nasiternella varinervis being of the same size as the rest teeth, and the antennae being only 2.5 times as long as wide (4 times as long as wide in Tricyphona immaculata). The larvae develop in the dead wood of fallen trunks of deciduous and coniferous trees and are not associated with strongly moistened substrates.