Notes on the Behaviour ofGlossina pallidipesandG. brevipalpis, and some Comparisons withG. morsitans

Abstract

1.G. pallidipesalmost invariably attacks man on the leg from the knee downwards.2.G. brevipalpismay attack man anywhere and not infrequently on the head.3. Both species fill themselves readily with human blood once an attack has been made.4. Neither sex of either species attacks man unless very hungry, as indicated by the very low mean fat content in the captures.5.G. brevipalpisis apparently more reluctant even thanpallidipesto attack man, and the fat contents in flies caught on man are proportionally lower than in the case ofpallidipes.