Target pest: Chromatomyia syngenesiae (Diptera: Agromyzidae) = Phytomyza atricornis, leaf miners
Agent introduced: Hemiptarsenus semialbiclavus (Hymenoptera: Eulophidae) = Hemiptarsenus varicornis
Import source: Pakistan
Released: 1970, 1971
Release details: Between Dec 1970 and March 1971 653 parasitoids were released at Lincoln and 100 at Ashburton Canterbury
Establishment: Probably already present in New Zealand before these releases
Cameron PJ, Hill RL, Bain J, 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.