ACTIA DIFFIDENS CURRAN, A PARASITE OF PERONEA VARIANA (FERNALD) IN CAPE BRETON, NOVA SCOTIA

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Abstract
The immature stages of Actia diffidens, a tachinid parasite of the black-headed budworm, are described in detail, together with observations on the secondary integumental funnel, an ingrowth of the host body wall, within which the parasite maggots live in the later stages. In all cases observed, the integumental funnel was attached to a restricted area on either side of the mesothorax of the host larva. As the funnel is secondarily developed, its location can hardly be determined by the oviposition habits of the parent fly. Unfortunately, very little is known of the adult stage, and nothing of its mode of oviposition.

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