Biology of Gnathocerus cornutus
- 1 April 1949
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 42 (2) , 229-231
- https://doi.org/10.1093/jee/42.2.229
Abstract
Immature stages of the broad-horned flour beetle were exposed to 46 different combinations of temp. and saturation deficits. Favorable temp. and moisture levels ranged from 15[degree] to 32[degree]C and nearly zero to 12.7 mm. saturation deficit. Opt. temp. and moisture levels approach 24[degree] to 30C and 2.5 to 7.5 mm. saturation deficit. The prepupal and pupal stages were most sensitive to marginal physical environmental conditions. Development in the opt. zone required 7 days for the incubation period, 40 days for the larval development during which time the larva molts 7 times, and 10 days for the pupal period. The preoviposition period lasted 20 days, making a total of about 77 days from egg to egg. Under favorable conditions a female may lay from 300 to 400 eggs over a period of 5 mos.Keywords
This publication has 0 references indexed in Scilit: