author(s)
Preetipuja Kashyap, Purnima Das, KK Sharma, A Mohanasundaram and LK Hazarika

abstract
An experiment was conducted to study the comparative biology and morphometric study of Callosobruchus chinenesis on Flemingia macrophylla, Flemingia semialata, Vigna radiata and Cicer arietinum seeds in the Insect Physiology Laboratory of Department of Entomology, Assam Agricultural University, Jorhat during 2018-19. The study revealed that incubation period, larval period, pupal period, total developmental period, adult longevity, fecundity and rate of oviposition varied significantly among different stored seeds. The developmental parameters during the months of June-July and Nov-Dec showed that the total developmental period was highest in F. semialata (32.60±0.50 days, 46.4±0.50 days) and lowest in V. radiata (25.40±0.24 days, 39.2±0.37 days) in both the seasons, respectively. The morphometric measurement revealed that females were larger in size than males. The maximum body length of adult was recorded on V. radiata (3.86±0.05 mm, 4.13±0.08 mm) in male and female, respectively.