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STUDIES OF LATHROMEROIDEA SP.NOV. (HYMENOPTERA: TRICHOGRAMMATIDAE), A PARASITOID OF GERRID EGGS

Published online by Cambridge University Press:  31 May 2012

Nidia Priscila Henriquez  and
John R. Spence
Nidia Priscila Henriquez
Affiliation:
Department of Entomology, University of Alberta, Edmonton, Alberta, Canada T6G 2E3
John R. Spence
Affiliation:
Department of Entomology, University of Alberta, Edmonton, Alberta, Canada T6G 2E3
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Abstract

Use of gerrids (Hemiptera: Gerridae) as primary hosts by the solitary egg parasitoid Lathromeroidea sp.nov. is established and parasitoid reproductive behaviour is described. Four species of Limnoporus (L. dissortis Drake and Harris, L. notabilis Drake and Hottes, L. rufoscutellatus Latreille, and L. esakii Miyamoto) and two of Gerris (G. buenoi Kirkaldy and G. pingreensis Drake and Hottes) were successfully parasitized in the laboratory. A greater proportion of wasps eclosed successfully from eggs of Gerris than from Limnoporus. Host size was directly proportional to both weight and body length of adult parasitoids. Sex ratios were female-biased, with males emerging before females.

Résumé

L’utilisation de gerris comme hôte primaire par le parasitoïde solitaire des oeufs Lathromeroidea sp.nov. est établi, et le comportement reproducteur du parasitoïde est décrit. Quatre espèces de Limnoporus (L. dissortis Drake et Harris, L. notabilis Drake et Hottes, L. rufoscutellatus Latreille et L. esakii Miyamoto) et deux de Gerris (G. buenoi Kirkaldy et G. pingreensis Drake et Hottes) furent parasitées avec succès en laboratoire. Une plus grande proportion de guêpes ont éclos avec succès des oeufs de Gerris, que de ceux de Limnoporus. La dimension de l’hôte est directement proportionnelle au poids et à la longueur de corps du parasitoïde adult. Le rapport des sexes est biaisé vers les femelles, les mâles émergeant avant les femelles.

Type
Articles
Information
The Canadian Entomologist , Volume 125 , Issue 4 , August 1993 , pp. 693 - 702
Copyright
Copyright © Entomological Society of Canada 1993

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