The angiospermic family Fabaceae or Leguminosae is the second largest family in the world. Out of about 1200 species described, only 122 species were found to be attacked by one or other aphid (Insecta : Homoptera : Aphididae) species. On record, 73 aphid species colonise the legumes in India, among which Aphis craccivora is the dominating species and feeds on 83 species of legumes followed by Aphis gossypii (39 species) and Acyrthosiphon pisum (20 species). The higher number of aphid species (16 species) are found to colonise Cajanus cajan followed by Lablab purpureus ssp. purpureus (12 aphid species) and Vigna unguiculata ssp. cylindrica (8 aphid species).