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Phryxe vulgaris (Fall.) (Diptera: Tachinidae), a New Parasite of Pieris rapae (L.) (Lepidoptera: Pieridae) in Canada1

Published online by Cambridge University Press:  31 May 2012

Marcel Hudon
Marcel Hudon
Affiliation:
Crop Insect Section, Science Service Laboratory St. Jean, Que.
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Extract

In July, 1956, a pupa of the imported cabbageworm, Pieris rapae (L.), was found attached to the undersurface of a corn leaf in experimental plots at St. Jean. After the pupa had been incubated at 75°F. for six months, a dipterous parasitic larva emerged and pupated immediately; a tachinid fly emerged two weeks later. The parasite was identified by Mr. J. G. T. Chillcott, Entomology Division, Ottawa, as Phryxe vulgaris (Fall.). P. vulgaris has been reported as a parasite of Pieris rapae, P. brassicae (L.), P. napi (L.), and Vanessa urticae (L.) from many central and northern European countries (Thompson, 1946, pp. 467-469; 1947, p. 598). Aldrich and Webber (1924), Chittenden (1926), and Schaffner and Griswold (1934) reported this parasite from P. rapae in the United States. P. vulgaris has been reported from Canada only on larvae of the armyworm, Pseudaletia unipuncta (Haw.), in Nova Scotia and New Brunswick (Gibson, 1915, p. 14).

Type
Articles
Information
The Canadian Entomologist , Volume 89 , Issue 12 , December 1957 , pp. 546
Copyright
Copyright © Entomological Society of Canada 1957

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References

Aldrich, J. M., and Webber, R. T.. 1924. The North American species of parasitic two-winged flies belonging to the genus Phorocera and allied genera. Proc. U.S. Nat. Mus. 63 (17).CrossRefGoogle Scholar
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Thompson, W. R. 1946. A catalogue of the parasites and predators of insect pests. Section 1, parasite host catalogue. Part 8, parasites of the Lepidoptera. Imp. Agr. Bur., Parasite Serv., Belleville, Ont., Canada, (processed)Google Scholar
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