Observations on the Biology of Callosobruchus maculatus (Fab.) (Coleoptera: Bruchidae) under Ambient Laboratory Conditions

Observations on the biology of Callosobruchus maculatus ( Fab.) were carried out under ambient laboratory conditions. Pattern of oviposition, female adult longevity and F1 progeny emergence in Callosobruchus maculatus ( Fab. ) were observed. The results showed that over 60% of the total number of eggs was laid during the first 72 hours of the commencement of oviposition; however, oviposition rate and F1 adult emergence of the bruchids decreased with time thereafter. The maximum adult C .  maculatus survival period was about ten days. Keywords : Callosobruchus maculatus , pattern of oviposition, female adult longevity and F1 adult progeny emergence