Target pest: Hylastes ater (Coleoptera: Anthribidae), black pine bark beetle
Agent introduced: Thanasimus formicarius (Coleoptera: Cleridae)
Import source: Austria
Release details: A total of 12, 385 adults were released into forests at Woodhill, Waiuku, Kawhia, Rotoehu, Tarawera, Matahina, Whakarewarewa, Kaingaroa, Tokoroa, Tauhara, Patanamu, Pouakani, Karioi, Waiterere, Gwavas (North Island), Rabbit Island and Golden Downs (South Island)
Establishment: Recovered from Whakarewarewa Forest in 1984, probably established elsewhere.
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.