none no species The rice whorl maggot, Hydrellia philippina Ferino, is an important pest of rice during the first 35 days after transplanting and severe infestation causes reduction in yield, height and tillering. A natural enemy of this pest, a parasite of the genus Chaenusa , was recorded from India. The morphology of this specimen is described. Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Land and freshwater zones; Oriental region Hydrellia philippina (Ephydridae); Hymenopteran parasites; Chaenusa; New host record; India; New hymenopteran parasite record Chaenusa (Hymenoptera); Dipteran hosts; Hydrellia philippina; New host record; India; New dipteran host record