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ABSTRACT
An account of eleven aphidiid parasitoids of gall forming aphids occurring in the western Himalaya is given. Two new species, Aphidius staryi and Trioxys (Binodoxys) tomentosae are described. Ephedrus nacheri Quilis is recorded for the first time from India. Information on seasonal history, association of hyperparasitoids, and altitudinal stratifications, of the above species are given.