Biology of lamerin race of silkworm, Bombyx mori L.

Abstract

Lamerin race of the silkworm, Bombyx mori L was collected from its aboriginal inhabitant (Northeastern India) and observations were made on various developmental stages. The race is hibernated (bivoltine) and survived with a microsporidian infection. It spins orange yellow colour flossy cocoons of irregular shape and with thick filament. The mean adult life span for females and males were 12 days and 10 days respectively.