Psychoda alternataSay (Diptera: Psychodidae)is reported emerging from sludge-amended agricultural fields, and a simple and efficient method for rearing this insect in the laboratory on liquid digested sewage sludge is described. Mean days from egg to adult emergence at 24°C for males was 11.2 ± 0.24 (n= 45); for females it was 13.1 ± 0.52 (n= 30). An experiment testing ovipositional attractiveness of three sludges of 3.02, 6.38, and 13.81% solids showed a significant preference for the latter. An examination of possible carnivorous tendencies of larvae proved negative