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Biocontrol introduction

Target pest: Paropsis charybdis (Coleoptera: Chrysomelidae), eucalyptus tortoise beetle

Agent introduced: Paropsiva spp. (Diptera: Tachinidae)


1934?, 1935?, 1973-74, 1974-75

Import source:


Import notes:

Cameron et al. (1989) - in February 1934 a small number of late instar larvae of various Paropsis species were imported from, Australia, which yielded ‘a quantity of tachinid puparia’. In March 1934, 24 tachinid puparia were received from Australia, and another 29 in January 1935. Apparently two distinct species were present in all three consignments. A number of tachinids were reared but there were no field releases. During the summer of 1973-74, 5,435 tachinid puparia were imported; 58% yielded insects of which just over half were tachinids (the rest being hyperparasitoids), mostly Froggattimyia tillyardi with a few Paropsivora sp. About 8,000 P. Charybdis larvae were exposed to the tachinids but only three F1 flies resulted. No releases were made. In the 1974-75 season 10,632 tachinid pupae were received from Australia; 70% yielded insects of which two-thirds were tachinids (the rest being hyperparasitoids), nearly all Froggattimyia tillyardi plus a few Paropsivora sp. Over 10,000 Paropsis larvae were exposed to the tachinids but only 49 F1 flies resulted.


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.