Identification of host blood meals collected on filter paper in the field from fully fed female anophelines was carried out by a microdot-ELISA; field-caught mosquito species were simultaneously identified. The results indicate that the percentages of mixed feeds, i.e., mosquitoes feeding both on human and cattle hosts to complete a blood meal, was only 3-4%. Human and mixed feeds together accounted for nearly 10% of bloodmeals. Mosquitoes collected from human dwellings did not show a higher percentage of human feeding than cattle feeding. The human blood index was found to be related to the proportion of human and cattle population in an area.