Seasonal activity of Ichneumonid pupal parasitoids of <i>Operophtera</i> spp. (Lepidoptera: Geometridae)

Authors

  • L. M. Humble Department of Biology University of Victoria Victoria, B.C.

Keywords:

<i>Operophtera</i> spp., Lepidoptera, Geometridae, biological control

Abstract

Field placement of cocoons of <i>Operophtera</i> spp. was used to determine the timing of attack by pupal parasitoids of the winter moth, <i>Operophtera brumata</i> (L.), and the Bruce spanworm, <i>O. bruceata</i> (Hulst). <i>Coccygomimus hesperus</i> Tow. & Tow., the most abundant parasitoid recovered, attacked <i>Operophtera</i> pupae from early June until the end of August. At least two generations of <i>C. hesperus</i> occur each season. <i>Buathra dorsicarinata</i> (Pratt) was not recovered in numbers large enough to determine its timing of attack and no pupae parasitized by <i>Cratichneumon</i> sp. were recovered.

References

Carlson, R.W. 1979. Ichneumonidae. Pp. 315-740. In: K.V. Krombein et al. (eds.). Catalog of Hymenoptera in America North of Mexico, Vol. 1. Smithsonian Institution Press, Wash., D.C. 1198 pp.

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.

Gillespie, D.R. and T. Finlayson. 1981. Final-instar larvae of native hymenopterous and dipterous parasites of Operophtera spp. (Lepidoptera: Geometridae) in British Columbia. Can. Ent. 113:45-55.

Heinrich, G.H. 1960. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Can. Ent. Sup. 15.

Humble, L.M. (In press). Final-instar larvae of native pupal parasites and hyperparasites of Operophtera spp. (Lepidoptera: Geometridae) on southern Vancouver Island. Can. Ent.

Maybee, G.E. and H.G. Wylie. 1961. Effects of temperature and moisture on survival of parasites in stored winter moth, Operophtera brumata (L.) (Lepidoptera: Geometridae). Can. Ent. 93:851-855.

Price, P.W. 1970. A comparison of four methods for sampling adult populations of cocoon parasitoids (Hymenoptera: Ichneumonidae). Can. J. Zool. 49:513-521.

Schultz, P.B. and L.T. Kok. 1979. Biological influences affecting laboratory rearing of the pupal parasite Coccygomimus turionellae. Environ. Entomol. 8:437-440.

Sechser, B. von. 1970. Der Parasitenkomplex des Kleinen Frostspanners (Operophtera brumata L.) Lep., Geometridae) unter besonderer Berucksichtigung der Kokonparasiten. I. Z. angew. Ent. 66:1-35.

Sokal, R.R. and F.J. Rohlf. 1981. Biometry The Principles and Practice of Statistics in Biological Research. 2nd ed. W. H. Freeman & Co., San Francisco. 859 pp.

Townes, H. and M. Townes. 1960. Ichneumon-flies of America north of Mexico: 2. Subfamilies Ephialtinae, Xoridinae, Acaenitinae. Bull. U.S. Nat. Mus. 216, Part 2.

Townes, H. and M. Townes. 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, Tribe Mesostenini. Bull. U.S. Nat. Mus. 216, Part 3.

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Published

2019-09-17