The micromorphology of the antennae of the blueberry leaf-tier moth, Croesia curvalana (Kft.) (Lepidoptera: Tortricidae)

Abstract

The micromorphology of the antennae of the blueberry leaf-tier moth Croesia curvalana (Kft.) (Lepidoptera: Tortricidae) is described. The number and distribution of the various sensilla types were examined, and comparisons made between males and females as well as with other species. Sensilla observed were sensilla trichodea, chaetica, coeloconica, styloconica, and aurillica. There are sexual differences in the numbers and distribution of sensilla. Their distribution on the antenna bears a resemblance to that described for other Lepidoptera and is very similar to that described for other Tortricidae. A refined technique for removal of the protective scales from the antennae to facilitate observation of the sensilla is reported.