Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Biology of Chrysopa (Anisochrysa) sp. a predator of Pyrilla perpusilla Walker eggs, under laboratory conditions.

Abstract

The biology of the chrysopid Chrysopa sp., a predator of the lophopid sugarcane pest Pyrilla perpusilla, was studied in the laboratory at 23.4-30.4°C and 60-90% RH. The pre-oviposition, oviposition, post-oviposition, incubation, larval and pupal periods ranged from 4.9 to 5.2, 11.5 to 14.3, 15.1 to 17.1, 3.8 to 4.7, 20.6 to 23.1 and 11.6 to 12.2 days, resp. The longevity of male and female adults was 27.4-28.3 and 31.8-32.7 days, resp. The fecundity per female and the percentage hatchability of eggs were 27.5-28.2 and 63.9-70.3, resp. The number of eggs consumed by a single larva of the predator during its life time ranged from 237.8 to 252.6.