Target pest: Chromatomyia syngenesiae (Diptera: Agromyzidae) = Phytomyza atricornis, leaf miners
Agent introduced: Hemiptarsenus varicornis (Hymenoptera: Eulophidae) = Hemiptarsenus semialbiclavus (Girault)
Imported: Introduced as Hemiptarsenus semialbiclavus. Probably in New Zealand before deliberate importations began.
Import source: Pakistan
Release details: 1970-71 released at Lincoln, Canterbury, (653) and Ashburton, Mid-Canterbury, (100).
Establishment: Appears to have established in New Zealand before it's deliberate introduction.
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.