Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2001.326.328Propylea fallax (Khuzorian) on Mungbean Aphid]]>Alamgir HossainM. Shariful IslamKhandakar Safiqul IslamKhandakar Abdul AhadMd. Rezaul HoqueA.T.M. 3200143The biology of Propylea fallax (Khuzorian) was studied in the laboratory using mungbean aphid as food. Mating period generally lasted upto 2 hours. A female laid 507.2 eggs on an average. The mean incubation period of the egg was 2.1 days with hatchability 98.87 percent. The larva completed four instars in 5.3±0.19 days with almost similar duration of 1.5, 1.15, 1.05 and 1.6 days for 1st, 2nd, 3rd and 4th instar, respectively. The pre-pupal and pupal periods were 1.2±0.13 and 2.0±0 days. Adult longevity of male was 15.6±0.57 days and 19.6±0.66 days for the female. The average aphid consumption of the larva was 168.5±7.18 and adult 806.6±73.65. Both adult and larva preferred aphids having body width 0.25-0.75 mm, whereas above 1.0 mm were least preferred.]]>Islam, M.A. and M. Nasiruddin,1978Verania discolor F.]]>74849Ngammuang, P.N.,1987Micraspis discolor (F.) (Coleoptera: Coccinellidae) and its role as biological control agent.]]>1987Parker, B.L. and G. Singh,197322329Pillai, G.B. and K.R. Nair,1986Opisinia arenosella Wlk.]]>14138140Rawat, R.R. and B.N. Modi,19693910571058Wangleelog, N. and T.T. Thong,1988Menochilus sexmaculatus F.) in the control of groundnut aphids (Aphis glycines).]]>1988pp: 261267