Comparative Ethology and the Systematics of Spider Wasps

Abstract
Behavioral characteristics are no less important than structural ones and may be used to separate taxonomic groups. The family Pompilidae is defined as clearly by its behavior patterns as by its morphology. The development of ethological types within this family are discussed. Two closely related species Anoplius semirufus (Cresson) and A. apiculatus (Smith) can be distinguished on the basis of behavior.