SEX‐RELATED MORPH FREQUENCIES IN ACRIDA CONICA (F.) (ORTHOPTERA: ACRIDIDAE)

Abstract

Green and brown morphs of the grasshopper Acrida conica (F.) occur sympatrically at several sites in metropolitan Perth, Western Australia. Collections of nymphs from 5 sites and adults from 6 sites showed that the morph frequencies were strongly sex‐related in the nymphs, where there were significantly more green females than green males. With adults the proportion of green males increased to near levels found in females.