Green Global
Foundation   Journal
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BIOLOGY OF LADYBIRD BEETLE Micraspis discolors (Fab.) (COCCINELLIDAE: COLEOPTERA) (Pages : 39 - 44)

The experiment was conducted at the Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, during January to April 2007 at 21.02ºC ± 4.5 ºC (Room temperature) and 66.05 ± 0.95 % RH to observe the biology of ladybird beetle . The mean pre-oviposition period of the ladybird beetle Micraspis discolor was 5.1±0.48 days and the oviposition period was 40.10 ±0.46 days. The female beetles laid on an average 235.50 ±7.96 eggs and the hatching % was 83.93 ±2.11. The average incubation period was 3.1± 0.22 days and the duration of total the larval period from egg to adult was 10.76 ±1.35 days. The pre-pupal and pupal periods were 1.50 ±0.20 and 2.60± 0.21days, respectively. The mean longevity of the male and the female beetles were 40.20 ±1.0 and 47.50 ±0.82 days, respectively. Download