Abstract

The male and female of a new species of Amphoropsyche Holzenthal from Bolivia are described and illustrated. The new species is closest to A. quebrada Holzenthal and can be distinguished from it and other members of the genus by the presence of spinelike setae on abdominal segment X, the inferior appendages, and the phallic apparatus of the male genitalia. The larva of A. insularis (Flint) is redescribed and illustrated. It can be separated from other Neotropical leptocerids by the presence of secondary setae on the proand mesonota and two bands of flat, spinelike setae on the anal prolegs. The pupa of A. insularis is described and figured, representing the first description of a pupa of this genus.