Morphology of larvae of the weevils Apion frumentarium, Pseudaplemonus aeneicollis, and Stenopterapion margelanicum (Coleoptera, Apionidae)

Abstract

Larvae of the weevils Apion frumentarium Linnaeus, Pseudaplemonus aeneicollis Gerstaecker of the tribe Apionini, and Stenopterapion margelanicum Wagner of the tribe Oxystomatini are described for the first time. The diagnoses of larvae of these three species are presented, and their characteristics are compared with those of the larvae of Protapion apricans Herbst., Pirapion immune Kirby, and Ischnopterapion loti Gyllenhal. The larvae differ in the structure and chaetotaxy of the head, labium, pedal lobes, and abdominal segments IX and X.