During the summers of 1972–73, 10 fish species were evaluated as predators against larvae of the dark rice field mosquito,Psorophora confinnis(Lynch-Arribalzaga), near Stuttgart, Ark. Stocking rates were 0.02, 0.03, and 0.06 fish/ft2. At the lowest stocking rate green sunfish,Lepomis cyanellusRafinesque, reduced larval numbers by 89.7% and were significantly more effective than adult mosquitofish,Gambusia affinis(Baird and Girard). The white amur,Ctenopharynogodon idellaValenciennes, was intermediate in effectiveness when compared with the above. At 0.03 fish/ft2, green sunfish reduced larvae by 99.2% and were significantly more efficient than juvenile mosquitofish, which had little effect on the larval population. At the 0.06 fish/ft2rate mosquitofish; white amur; Israeli carp,Cyprinus carpioL.; and hybrids (Israeli carp × goldfish) were significantly more effective than bigmouth buffalo,Ictiobus cyprinellus(Valenciennes); black buffalo,Ictiobus niger(Rafinesque); goldfish,Carassius auratus(L.); or juvenile mosquitofish. Recovery counts of fish indicated that fish survived under natural conditions in Arkansas rice fields.