An extremely polyphagous ectoparasitoid, attacking Crambidae and Pyralidae in stored products and in the field; in the field other lepidopterous families may also be attacked (van Achterberg & Walker, 1998). Important hosts include Opisina arenosella (Walker), Chilo partellus (Swinhoe), Pectinophora gossypiella (Saunders); Corcyra cephalonica (Stainton) (factitious laboratory host, used widely for mass production in Indian insectaries).