Allozyme Variation in Four Ontario Populations of Xestia adela and Xestia dolosa and in a British Population of Xestia c-nigrum (Lepidoptera: Noctuidae)1

Abstract

Allozyme variation has been studied electrophoretically at six loci in four Ontario populations of Xestia adela and X. dolosa and in one population of X. c-nigrum collected from Oxford, England. Nei's genetic distance calculated between species showed X. adela to be closer to X. cnigrum (0.104) than to X. dolosa (0.319), and X. dolosa to be closer to X. c-nigrum (0.260) than to X. adela. The average genetic distance between populations of X. adela was 0.0289, and between populations of X. dolosa it was 0.0764. The level of polymorphism was highest in X. c-nigrum. No evidence of clinal variation was evident in the Ontario populations.