The traits of a biotype of Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) from South India

摘要: Abstract The South India strain of Callosobruchus maculatus (F.), which has been in culture for 10 yr, cannot be distinguished from three cultures established beetles collected 1989. These represent a geographic biotype C. that is widely distributed the state Tamil Nadu, and stable culture. Females disperse their eggs uniformly, lay on larger beans first, have oviposition inhibited if already carry eggs, larvae exhibit contest competition. Fecundity varies greatly within between cultures. extremes fecundity less effect contribution offspring to next generation than elimination intraspecific competition by selective oviposition.