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Life cycle of bean beetles Callosobruchus maculatus (F.)

Nawlesh Kumar*
Department of Zoology, Magadh University, Bodh Gaya, Bihar, India
Received : 1st July, 2017; Revised : 22nd July, 2017

Abstract: Life cycle of bean beetle, Callosobruchus maculatus (F.) is theoretically described to observe holometabolous pattern of metamorphosis. However, host specific life cycle of this stored grain pest propagating on stored dry gram needs to be carefully observed in order to record the duration of life cycle in different seasons. The number of larval instars also undergoes variation which has been reported in this article. The pattern of life cycle of the pest also determines the number of generations observed in one year which is also called voltine cycle. The voltinism is responsible for regulating the degree of damage caused by the pest to the host. In this study, the pest has been found to be tetravoltine with pentainstar holometabolous metamorsphosis.

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