Behaviour 2019
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Intersexual differences in the feeding behavior of a dimorphic praying mantis species
Drielly Queiroga1,2, Kleber Del-Claro2. 1Programa de Pós-Graduação em Entomologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil; 2Laboratório de Ecologia Comportamental e de Interações, Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil

Mantodean species may have a remarkable sexual dimorphism (body and wing size) that may lead to behavioral differences between sexes. Although praying mantises are very diverse in Brazil, most of their natural history, feeding, and sexual behavior are unknown. We described the hunting behavior of the sexual dimorphic species Metaphotina brevipennis (Acontistidae), comparing possible behavioral differences associated with sex. We observed 15 individuals, five males and ten females, collected in Cerrado, a Brazilian savannah, and reared in the lab. We offered Tenebrio molitor (larvae and adult) to all individuals and recorded all behaviors along with their frequency. Our preliminary results show that females are more aggressive and active hunters than males, performing more attack attempts and chasing prey more frequently. Also, males often run away from prey after a failed capture attempt (%85) or avoided them without try to attack, while females were more likely to make a second attempt. We believe once females live and spend more energy than males, they often assume the risk against difficult or dangerous prey, while males avoid these risks to survive and finding a mate.