Hostname: page-component-848d4c4894-xfwgj Total loading time: 0 Render date: 2024-07-06T05:06:20.787Z Has data issue: false hasContentIssue false
  • English
  • Français

FINAL-INSTAR LARVAE OF NATIVE HYMENOPTEROUS AND DIPTEROUS PARASITES OF OPEROPHTERA SPP. (LEPIDOPTERA: GEOMETRIDAE) IN BRITISH COLUMBIA

Published online by Cambridge University Press:  31 May 2012

David R. Gillespie  and
Thelma Finlayson
David R. Gillespie
Affiliation:
Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6
Thelma Finlayson
Affiliation:
Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6
Get access Rights & Permissions [Opens in a new window]

Abstract

Nine species of parasites and one hyperparasite were reared from a complex of the brace spanworm, Operophtera bruceata (Hulst), and the European winter moth, O. brumata (L.), collected in the Victoria area of Vancouver Island, British Columbia, in 1976 and 1977. Parasitism of the host complex was about 1.5%, mainly due to an unnamed species of Phobocampe (Ichneumonidae). All species of parasites taken in British Columbia on the two hosts have congeneric counterparts on O. brumata in Europe as listed by Wylie (1961); thus the release of exotic species in addition to the two already released in British Columbia may not enhance the biological control of O. brumata. Descriptions and illustrations of cephalic structures of final-instar larvae of the parasites and a key for their separation are given.

Résumé

Neuf espèces de parasites et un hyperparasite ont été obtenus d’un complexe d’hôtes comprenant l’arpenteuse de Bruce, Operophtera Bruceata (Hulst), et l’arpenteuse tardive, O. brumata (L.), collectionnées dans la région de Victoria sur l’ile de Vancouver, Colombie-Britannique, en 1976 et 1977. L’incidence de parasitisme du complexe d’hôtes était d’environ 1.5%, le principal parasite étant une espèce inconnue du genre Probocampe (Ichneumonidae). Toutes les espèces de parasites trouvées en Colombie-Britannique sur les 2 hôtes ont une espèce congénérique équivalente associée à O. brumata en Europe selon la liste publiée par Wylie (1961), de telle sorte que l’introduction de nouvelles espèces exotiques en plus des deux espèces déjà introduites en Colombie-Britannique n’améliorerait pas nécessairement le contrôle biologique d’O. brumata. Des descriptions et des illustrations des structures céphaliques du dernier stade larvaire des parasites et une clé permettant leur séparation sont fournies.

Type
Articles
Information
The Canadian Entomologist , Volume 113 , Issue 1 , January 1981 , pp. 45 - 55
Copyright
Copyright © Entomological Society of Canada 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Eidt, D. C. and Embree, D. G.. 1968. Distinguishing larvae and pupae of the winter moth, Operophtera brumata, and the bruce spanworm, O. bruceata (Lepidoptera: Geometridae). Can. Ent. 100: 536–539.Google Scholar
Embree, D. G. 1966. The role of introduced parasites in the control of the winter moth in Nova Scotia. Can. Ent. 98: 1159–1168.Google Scholar
Finlayson, T. 1960. Taxonomy of cocoons and puparia, and their contents, of Canadian parasites of Neodiprion sertifer (Geoff.) (Hymenoptera: Diprionidae). Can. Ent. 92: 20–47.Google Scholar
Finlayson, T. 1962. Taxonomy of cocoons and puparia, and their contents, of Canadian parasites of Diprion similis (Htg.) (Hymenoptera: Diprionidae). Can. Ent. 94: 271–282.Google Scholar
Finlayson, T. 1964. The caudal appendage of final-instar larvae of some Porizontinae (Hymenoptera: Ichneumonidae). Can. Ent. 96: 1155–1158.Google Scholar
Finlayson, T. 1967. Taxonomy of final-instar larvae of the hymenopterous and dipterous parasites of Acrobasis spp. (Lepidoptera: Phycitidae) in the Ottawa region. Can. Ent. 99: 1233–1271.Google Scholar
Finlayson, T. 1975. The cephalic structures and spiracles of final-instar larvae of the subfamily Campopleginae, tribe Campoplegini (Hymenoptera: Ichneumonidae). Mem. ent. Soc. Can. 94. 137 pp.Google Scholar
Finlayson, T. and Hagen, K. S.. 1977. Final-instar larvae of parasitic Hymenoptera. Pest Management Papers, No. 10. Simon Fraser University, Burnaby, B.C., Canada.Google Scholar
Gillespie, D. R. and Finlayson, T.. 1979. The function of the caudal appendage in cocoon jumping in Phobocampe sp. (Hymenoptera: Ichneumonidae: Campopleginae). J. ent. Soc. Br. Columb. 76: 39–42.Google Scholar
Gillespie, D. R., Finlayson, T., Tonks, N. V., and Ross, D. A.. 1978. Occurrence of the winter moth, Operophtera brumata (Lepidoptera: Geometridae), on southern Vancouver Island, British Columbia. Can. Ent. 110: 223–224.Google Scholar
Short, J. R. T. 1978. The final larval instars of the Ichneumonidae. Mem. Am. ent. Inst. 25.Google Scholar
Turnbull, A. L. and Chant, D. A.. 1961. The practice and theory of biological control of insects in Canada. Can. J. Zool. 39: 697–753.Google Scholar
Wylie, H.G. 1961. Insect parasites of the winter moth, Operophtera brumata (L.) (Lepidoptera: Geometridae) in Western Europe. Entomophaga 5: 111–129.Google Scholar