oa Journal of East African Natural History - Observations on butterfly migration at Entebbe, Uganda

Volume 1970, Issue 119
  • ISSN : 0012-8317



Bird migration has been recognized as a to-and-fro movement for a long time, but this type of movement is recorded for relatively few species of butterflies. The best known of these are the Monarch (Danaus plexippus L.) of North America and the Red Admiral (Vanessa atalanta L.) and Painted Lady (V. cardui L.) of the Old World. Records of migratory movements in these and many others, amounting to a total of 214 species, are summarized by Williams (1930) who defines insect migration as follows: ""It is a periodic, more or less unidirectional continued movement assisted by the efforts of the animal and in a direction over which it exerts a control, which results in the animal passing away from its previous daily field of activity.""

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