A record of the releases and recoveries of the Australian parasitoids Xanthopimpla rhopaloceros Krieger (Hymenoptera: Ichneumonidae) and Trigonospila brevifacies Hardy (Diptera: Tachinidae) introduced into New Zealand for leafroller control.

Abstract

The geographical ranges of the leafroller parasitoids Xanthopimpla rhopaloceros Krieger and Trigonospila brevifacies Hardy within New Zealand have not previously been determined. Records of establishment and dispersal from 1967-1996 are presented for both parasitoid species. T. brevifacies is present in the North and South Islands to 41°20′S and X. rhopaloceros is present in the North and South Islands to 41°48′S. Both parasitoids have been collected from islands off the coast of the North Island.