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OBSERVATIONS ON LIFE HISTORY AND SEX RATIO VARIABILITY OF EUPTEROMALUS DUBIUS (HYMENOPTERA: PTEROMALIDAE), A PARASITE OF CYCLORRHAPHOUS DIPTERA1

Published online by Cambridge University Press:  31 May 2012

H.G. Wylie
H.G. Wylie
Affiliation:
Research Station, Agriculture Canada, Winnipeg, Manitoba
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Abstract

Females of Eupteromalus dubius (Ashm.) oviposit on pupae of cyclorrhaphous Diptera and the larvae develop gregariously as ectoparasites. Details of the life history of E. dubius are described. A progressively lower percentage of female progeny of E. dubius matures as the parasite:host ratio increases. Three mechanisms that may cause this sex ratio change are examined and discussed.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 11 , November 1976 , pp. 1267 - 1274
Copyright
Copyright © Entomological Society of Canada 1976

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References

Benson, J.F. 1973. Intraspecific competition in the population dynamics of Bracon hebetor Say (Hymenoptera: Braconidae). J. Anim. Ecol. 42: 105–124.CrossRefGoogle Scholar
Grosch, D.S. 1948. Dwarfism and differential mortality in Habrobracon. J. exp. Zool. 107: 289–313.CrossRefGoogle ScholarPubMed
Holmes, H.B. 1972. Genetic evidence for fewer progeny and a higher percent males when Nasonia vitripennis oviposits in previously parasitized hosts. Entomophaga 17: 79–88.CrossRefGoogle Scholar
Jackson, D.J. 1966. Observations on the biology of Caraphractus cinctus Walker (Hymenoptera: Mymaridae), a parasitoid of the eggs of Dytiscidae (Coleoptera). III. The adult life and sex ratio. Trans. R. ent. Soc. Lond. 118: 23–49.CrossRefGoogle Scholar
Peck, O. 1963. A catalogue of the Nearctic Chalcidoidea (Insecta: Hymenoptera). Can. Ent. Suppl. 30. 1092 pp.Google Scholar
Ratcliffe, N.A. and King, P.E.. 1967. The “venom” system of Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae). Proc. R. ent. Soc. Lond. (A) 42: 49–61.Google Scholar
Shiga, M. and Nakanishi, A.. 1968. Variation in the sex ratio of Gregopimpla himalayensis Cameron (Hymenoptera: Ichneumonidae) parasitic on Maracosoma neustria testacea Molschulsky (Lepidoptera: Lasiocampidae), with considerations on the mechanism. Kontyû 36: 369–376.Google Scholar
Viktorov, G.A. 1968. The influence of the population density upon the sex ratio in Trissolcus grandis Thoms. (Hymenoptera: Scelionidae). (In Russian; English summary.) Zool. Zh. 47: 1035–1039.Google Scholar
Walker, I. 1967. Effect of population density on the viability and fecundity in Nasonia vitripennis Walker (Hymenoptera, Pteromalidae). Ecology 48: 294–301.CrossRefGoogle Scholar
Wilkes, A. 1963. Environmental causes of variation in the sex ratio of an arrhenotokous insect, Dahlbominus fuliginosus (Nees) (Hymenoptera: Eulophidae). Can. Ent. 95: 183–202.CrossRefGoogle Scholar
Wylie, H.G. 1966. Some mechanisms that effect the sex ratio of Nasonia vitripennis (Walk.) (Hymenoptera: Pteromalidae) reared from superparasitized housefly pupae. Can. Ent. 98: 645–653.CrossRefGoogle Scholar
Wylie, H.G. 1970. Oviposition restraint of Nasonia vitripennis (Hymenoptera: Pteromalidae) on hosts parasitized by other hymenopterous species. Can. Ent. 102: 886–894.CrossRefGoogle Scholar
Wylie, H.G. 1973 a. Parasites of face fly, Musca autumnalis (Diptera: Muscidae), and associated Diptera near Belleville, Ontario. Can. Ent. 105: 257–261.CrossRefGoogle Scholar
Wylie, H.G. 1973 b. Control of egg fertilization by Nasonia vitripennis (Hymenoptera: Pteromalidae) when laying on parasitized house fly pupae. Can. Ent. 105: 709–718.CrossRefGoogle Scholar
Wylie, H.G. 1976. Interference among females of Nasonia vitripennis (Hymenoptera: Pteromalidae) and its effect on sex ratio of their progeny. Can. Ent. 108: 655–661.CrossRefGoogle Scholar