Target pest: aphids (Homoptera: Aphididae)
Agent introduced: Conwentzia psociformis (Neuroptera: Coniopterygidae)
Import source: North America (?)
Release details: A few cocoons were released at Nelson
Establishment: Not established
Cameron PJ, Hill RL, Bain J and Thomas WP (1989). A Review of Biological Control of Invertebrate Pests and Weeds in New Zealand 1874-1987. Technical Communication No 10. CAB International Institute of Biological Control. DSIR Entomology Division. 424p.