Allozyme polymorphism in the parasitic hymenopteraDiadromus pulchellusWSM. (Ichneumonidae)

Abstract
SUMMARY: The allozyme polymorphism ofDiadromus pulchellushas been analysed at 22 loci, the expression of one (Est-4) being male-limited. Six loci were found polymorphic for two (Ldh-1,Ldh-2,Acp-2,PgiandSdh) or three (Est-3) codominant alleles. Allele frequencies are similar in males and females at four loci in a laboratory population but there are important heterozygote deficiencies in females at three of them. The possibilities of negative heterosis or assortative mating to explain this deficiency are discussed.