Blooded mosquitoes were captured in 2 areas of Arkansas County, Arkansas. One area was primarily concerned with rice and soybean production. Livestock were extremely rare here. The other area was slightly upland and contained scattered herds of cattle and large wooded areas as well as rice and soybean fields. In the upland area cattle, horses and rabbits, in order of importance, were the most important identified hosts of Psorophora columbiae and Anopheles quadrimaculatus. Cattle, rabbits and birds were major hosts of Culex erraticus in this area. In the rice-producing area, horses and rabbits were the most important identified host of An. quadrimaculatus. Very few engorged individuals of Ps. columbiae and Cx. erraticus were collected. In comparison to the upland area, very few blooded mosquitoes were captured in the rice producing region.