none A braconid was imported into New Zealand from Australia to control the introduced Eucalyptus leaf-mining sawfly Phylacteophaga froggatti Riek (Hym.: Pergidae). Difficulties in rearing the parasite in quarantine facilities were overcome after it was discovered that the imported material included two closely related Bracon spp. with different mating requirements. The principal parasite (subsequently described as Bracon phylacteophagus Austin (Hym.: Braconidae)) was released and is now well established in some localities. Early results show a very rapid spread of the parasite with up to 98% parasitism and indicate that the sawfly population should be considerably reduced by late summer 1990.