Hemolymph osmoregulation in three species of beetles

Abstract

1. 1. Hemolymph osmoregulation was examined in Chrysochus auratus, Tetraopes tetrophthalmus and Tenebrio molitor. These beetles differed in their water loss rates and in the availability of free water in their habitats. 2. 2. During dehydration at comparable rates, osmotic responses were similar in these species. Osmoregulation after rehydration was better in C. auratus. 3. 3. Osmoregulation ability was not significantly affected by the beetle's rate of dehydration.