Target pest: Sirex noctilio (Hymenoptera: Siricidae), sirex wood wasp
Agent introduced: Schlettererius cinctipes (Hymenoptera: Stephanidae)
Cameron et al. (1989) - in 1964, two male and five female S. cinctipes were sent to New Zealand from California, USA. No insectary ovipostion was seen and no progeny were obtained.
Cameron et al. (1989) - not released
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.