First Data on the Morphology of Immature Stages of Flies of the Family Pseudopomyzidae (Diptera)

Abstract

Data on the morphology of the larva and pupa of the family Pseudopomyzidae are given for the first time. Polypathomyia stackelbergi larvae are associated with wood substrates and occur under the bark of deciduous trees. The larvae differ significantly from those of the related families in their morphology: they have a different structure of the ventral cornua of the pharyngeal sclerite with a dorsal tubercle, the posterior end of the terminal body segment bearing spiracles is divided by a furrow, the creeping welts with large tubercles of an irregular shape. This species and its distribution are associated with the trees Maackia amurensis Rupr. et Maxim., Phellodendron sachalinensis Sarg., and Kalopanax septemlobus (Thunb.) Koidz. endemic to the East Asian Subregion of the Palaearctic.