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DESCRIPTIONS OF LARVAE OF EIGHT NEARCTIC SPECIES OF DOLERUS (HYMENOPTERA: TENTHREDINIDAE) WITH FOCUS ON SIX EQUISETUM- FEEDING SPECIES FROM THE OTTAWA REGION

Published online by Cambridge University Press:  31 May 2012

L. Leblanc  and
H. Goulet
L. Leblanc
Affiliation:
Centre for Land and Biological Resources Research, Agriculture Canada, Ottawa, Ontario, Canada K1A 0C6
H. Goulet
Affiliation:
Centre for Land and Biological Resources Research, Agriculture Canada, Ottawa, Ontario, Canada K1A 0C6
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Abstract

The larvae of eight Nearctic sawfly species in the genus Dolerus are described here for the first time. Six species, D. aprilis, D. tibialis conjugates, D. gilvipes albifrons, D. apricus, D. acidus, and D. subfasciatus, were reared from adults collected on the field horsetail, Equisetum arvense Linnaeus, and the larvae of two species, D. sericeus and D. nitens, were collected on grasses. The life history of Dolerus spp. is described. An illustrated key to the species dealt with is provided. Taxonomic affinities among. the species are briefly discussed.

Résumé

Les larves de huit espèces néarctiques du genre Dolerus sont décrites pour la première fois. Les larves de six espèces, D. aprilis, D. tibialis conjugatus, D. gilvipes albifrons, D. apricus, D. acidus et D. subfasciatus, ont été élevées à partir d’adultes capturés sur le terrain sur la prèle des champs, Equisetum arvense Linnaeus, et les larves de deux espèces, D. sericeus et D. nitens, ont été capturées sur des graminées. Le cycle vital de Dolerus spp. est décrit. Une clé d’identification illustrée est fournie. Les affinités taxonomiques entre les espèces sont brièvement discutées.

Type
Articles
Information
The Canadian Entomologist , Volume 124 , Issue 6 , December 1992 , pp. 999 - 1014
Copyright
Copyright © Entomological Society of Canada 1992

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