On the variation law of body color and reproductive characteristics of cotton aphid, Aphis gossypii Glover (Homoptera:Aphididae), possessing different body-color Reproductive characteristics of the green peach aphid from different regions of China Relationship Between Adult Diapause Development and Over-wintering Coloration Changes in Chrysoperla sinica (Neuroptera) Effects of temperature on body color in Sitobion avenae (F.) SELECTION AND GENETIC ANALYSIS OF A BODY COLOUR MUTANT IN Helicovrpa armigera