Some aspects of the biology and population dynamics of nasonia vitripennis (walker) (hymenoptera: pteromalidae)
1965
VELTHUIS, H.H.W. | VELTHUIS-KLUPPELL, F.M. | BOSSINK, G.A.H.
Some aspects of the biology and population dynamics of the chalcid Nasonia vitripennis (Walker) are described. The reproduction capacity and the influence of size and age of the females have been studied, using Calliphora erythrocephala Meig. as the host. The females lay a maximum number of about 30 eggs into one host puparium. Fully parasitized puparia are recognized by females as such. This seems to be the major factor in the determination of the area searched for hosts. Changes in sex ratio of the offspring, in relation to the age and the density of the females are described. Also an influence of the age of the females on the number of offspring entering diapause is reported.
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