DESENVOLVIMENTO E REPRODUÇÃO DE Pygidicrana v-nigrum Serville, 1831 (Dermaptera: Pygidicranidae) ALIMENTADA COM DIETA ARTIFICIAL

Abstract

The insect nutrition assumes importance due to the increasing need for mass production facilities aimed at solving problems related to entomology. In this sense, there is a deficit of research on many species of dermaptera, Pygidicrana v-nigrum, like other species, has potential predation. The present work aimed to study biological aspects of earwigs P. v-nigrum when fed on artificial diet. The research was conducted at the Laboratory of Entomology, Departamento de Fitotecnia e Ciências Ambientais at the Centro de Ciências Agrárias, Universidade Federal da Paraíba, Campus II, Areia - PB, with temperature of 25 ± 2 °C, relative humidity 70 ± 10% and photoperiod 12 hours in a completely randomized design. These characteristics were embryonic, nymphal and adult P. v-nigrum on artificial diet. Eggs are laid individually, showed superior viability to 90%, with an average of 59,9 eggs per egg mass and incubation period of 23,6 days. The seventh instar was the longest with 38,9 days, and total nymphal stage of 254,4 days. The longevity lasted on average 129 days, with a time of approximately four hours of copulation and sex ratio of 0,4 females.