Hostname: page-component-848d4c4894-cjp7w Total loading time: 0 Render date: 2024-06-28T12:52:25.311Z Has data issue: false hasContentIssue false
  • English
  • Français

BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE): VII. EGGS OF THE SUBGENERA CHORIZAGROTIS, CRASSIVESICA, LONGIVESICA, OROSAGROTIS, AND PLEONECTOPODA

Published online by Cambridge University Press:  31 May 2012

E.H. Salkeld
E.H. Salkeld
Affiliation:
Biosystematics Research Institute, Agriculture Canada, Ottawa
Get access Rights & Permissions [Opens in a new window]

Abstract

The eggs of several species of cutworms of the subgenera Chorizagrotis, Crassivesica, Longivesica, Orosagrotis, and Pleonectopoda in the genus Euxoa Hübner are described. Within the genus eggs are of two main types, those with smooth chorions and those with ridged chorions, but all have the same basic chorionic design. Variations in the degree of ridging and in the detail of the design make the egg useful for species determination, and a key to some species is provided. However, the egg is of little value in distinguishing the subgenera as they are currently constituted.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 12 , December 1976 , pp. 1371 - 1385
Copyright
Copyright © Entomological Society of Canada 1976

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

Arnold, J.W. and Hinks, C.F.. 1975. Biosystematics of the genus Euxoa (Lepidoptera: Noctuidae). III. Hemocytological distinctions between two closely related species, E. campestris and E. declarata. Can. Ent. 107: 1095–1100.CrossRefGoogle Scholar
Byers, J.R., Hinks, C.F., and Lafontaine, J.D.. 1975. Biosystematics of the genus Euxoa (Lepidoptera: Noctuidae). II. A description of the immature stages of Euxoa basalis and a redescription of the adult. Can. Ent. 107: 1083–1094.CrossRefGoogle Scholar
Cheng, H.H. 1973. Observations on the bionomics of the dark-sided cutworm, Euxoa messoria (Lepidoptera: Noctuidae), in Ontario. Can. Ent. 105: 311–322.CrossRefGoogle Scholar
Crumb, S.E. 1929. Tobacco cutworms. Tech. Bull. U.S. Dep. Agric. 88.Google Scholar
Dyar, H.G. 1904. The Lepidoptera of the Kootenai District of British Columbia. Proc. U.S. natn. Mus. 27: 779–938.CrossRefGoogle Scholar
French, G.H. 1895. Partial preparatory stages of some moths. Can. Ent. 27: 331–332.CrossRefGoogle Scholar
Hardwick, D.F. 1966. A synopsis of the westermanni group of the genus Euxoa Hbn. (Lepidoptera: Noctuidae) with descriptions of two new species. Can. Ent. 98: 760–768.CrossRefGoogle Scholar
Hardwick, D.F. 1970. The genus Euxoa (Lepidoptera: Noctuidae) in North America. I. Subgenera Orosagrotis, Longivesica, Chorizagrotis, Pleonectopoda, and Crassivesica. Mem. ent. Soc. Can. 67.Google Scholar
Hudson, A. 1973. Biosystematics in the genus Euxoa (Lepidoptera: Noctuidae). Can. Ent. 105: 1199–1209.CrossRefGoogle Scholar
Hudson, H.F. and Wood, A.A.. 1929. The life-history of the white cutworm, Euxoa scandens Riley. 60th A. Rep. ent. Soc. Ont., pp. 67—70.Google Scholar
Peterson, A. 1964. Egg types among moths of the Noctuidae (Lepidoptera). Florida Ent. 47: 71–91.CrossRefGoogle Scholar
Salkeld, E.H. 1975. Biosystematics of the genus Euxoa (Lepidoptera: Noctuidae). IV. Eggs of the subgenus Euxoa Hbn. Can. Ent. 107: 1137–1152.CrossRefGoogle Scholar
Seamans, H.L. 1933. A preliminary study of the chorion design in the micropylar area of noctuid eggs. M. Sc. Thesis, University of Saskatchewan.Google Scholar
Strickland, E.H. 1916. The army cutworm Euxoa (Chorizagrotis) auxiliaris Grote. Can. Dept. Agric. Ent. Branch Bull. 13.Google Scholar
Syme, P.D. 1961. The morphology of lepidopterous eggs with descriptions of two hundred and forty-eight species. Ph.D. Thesis, University of Toronto.Google Scholar