Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-28T04:24:52.188Z Has data issue: false hasContentIssue false

IDENTIFICATION OF COCOONS AND LAST-INSTAR LARVAL REMAINS OF SOME HYMENOPTEROUS PARASITOIDS OF THE ARMYWORM, PSEUDALETIA UNIPUNCTA, IN EASTERN ONTARIO

Published online by Cambridge University Press:  31 May 2012

J. C. Guppy
Affiliation:
Entomology Research Institute, Canada Department of Agriculture, Ottawa, Ontario
C. D. F. Miller
Affiliation:
Research Station, Canada Department of Agriculture, Harrow, Ontario

Abstract

A descriptive key based on phenotypic characteristics displayed by cocoons and/or pupae is offered as a tool for identification of primary parasitoids of the armyworm, Pseudaletia unipuncta (Haworth), in eastern Ontario. A second key based on structural differences of the last-instar larval mouthparts and tracheae is offered as a means to differentiate secondary parasitoids associated with the above-mentioned primary forms. Photographs of the cocoons, illustrations of the last-instar larval mouthparts and tracheae, and biological notes on pre-imago habits are included as supplemental criteria for species identification.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1970

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

Breeland, S. G. 1958. Biological studies on the armyworm, Pseudaletia unipuncta (Haworth) in Tennessee (Lepidoptera: Noctuidae). J. Tenn. Acad. Sci. 33: 263347.Google Scholar
Burks, B. D. 1960. A revision of the genus Brachymeria Westwood in America north of Mexico (Hymenoptera: Chalcididae). Trans. Am. ent. Soc. 86: 225273.Google Scholar
Burrell, R. W. 1967. Parasites of the armyworm in Louisiana. J. econ. Ent. 60: 111114.CrossRefGoogle Scholar
Finlayson, T. 1960 a. Taxonomy of cocoons and puparia, and their contents, of Canadian parasites of Neodiprion sertifer (Geoff.). Can. Ent. 92: 2047.CrossRefGoogle Scholar
Finlayson, T. 1960 b. Taxonomy of cocoons and puparia, and their contents, of Diprion hercyniae (Htg.). Can. Ent. 92: 922941.CrossRefGoogle Scholar
Finlayson, T. 1962. Taxonomy of cocoons and puparia, and their contents, of Canadian parasites of Diprion similis (Htg.). Can. Ent. 94: 271282.CrossRefGoogle Scholar
Finlayson, T. 1963. Taxonomy of cocoons and puparia, and their contents, of Canadian parasites of some native Diprionidae. Can. Ent. 95: 475507.CrossRefGoogle Scholar
Finlayson, T. 1967. A classification of the subfamily Pimplinae (Hymenoptera: Ichneumonidae) based on final-instar larval characteristics. Can. Ent. 99: 18.CrossRefGoogle Scholar
Guppy, J. C. 1959, Four hymenoptera newly recorded as parasites of the armyworm, Pseudaletia unipuncta (Haw.) (Lepidoptera: Noctuidae). Can. Ent. 91: 426427.CrossRefGoogle Scholar
Guppy, J. C. 1961. Further hymenopterous parasites newly recorded from the armyworm, Pseudaletia unipuncta (Haw.) (Lepidoptera: Noctuidae). Can. Ent. 93: 569570.CrossRefGoogle Scholar
Guppy, J. C. 1967. Insect parasites of the armyworm, Pseudaletia unipuncta (Lepidoptera: Noctuidae), with notes on species observed in Ontario. Can. Ent. 99: 94106.CrossRefGoogle Scholar
Harcourt, D. G. 1969. The development and use of life tables in the study of natural insect populations. A. Rev. Ent. 14: 175196.CrossRefGoogle Scholar
Krombein, K. W., et al. . 1958. Hymenoptera of America north of Mexico, synoptic catalog. Agriculture Monogr. 2 (1st suppl.), 305 pp.Google Scholar
Krombein, K. W., et al. . 1967. Hymenoptera of America north of Mexico, synoptic catalog. Agriculture Monogr. 2 (2nd suppl.), 584 pp.Google Scholar
Muesebeck, C. F. W., and Dohanian, S. M.. 1927. A study in hyperparasitism, with particular reference to the parasite of Apanteles melanoscellus (Ratzeburg). U.S. Dep. Agric. Bull. 1487.Google Scholar
Muesebeck, C. F. W., et al. . 1951. Hymenoptera of America north of Mexico, synoptic catalog. Agriculture Monogr. 2, 1420 pp.Google Scholar
Peck, O. 1963. A catalogue of the nearctic Chalcidoidea. Can. Ent. Suppl. 30.Google Scholar
Pond, D. D. 1962. Life history studies of the armyworm, Pseudaletia unipuncta (Lepidoptera: Noctuidae), in New Brunswick. Ann. ent. Soc. Am. 53: 661665.CrossRefGoogle Scholar
(Errata 1961. Ann. ent. Soc. Am. 54: 168.)CrossRefGoogle Scholar
Richards, W. R. 1964. A short method for making balsam mounts of aphids and scale insects. Can. Ent. 96: 963966.CrossRefGoogle Scholar
Sadava, D., and Miller, C. D. F.. 1967. Taxonomy of last-instar larval remains of parasites reared from Spilonota ocellana. Can. Ent. 99: 436442.CrossRefGoogle Scholar
Short, J. R. T. 1952. The morphology of the head of larval Hymenoptera with special reference to the head of the Ichneumonoidea, including a classification of the final instar larvae of the Braconidae. Trans. R. ent. Soc. Lond. 103: 2784.CrossRefGoogle Scholar
Short, J. R. T. 1959. A description and classification of the final instar larvae of the Ichneumonidae (Insecta, Hymenoptera). Proc. U.S. natn. Mus. 110: 391511.CrossRefGoogle Scholar