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DESCRIPTION OF THE IMMATURE STAGES OF LEUCOPIS SP. NR. ALBIPUNCTA (DIPTERA: CHAMAEMYIIDAE) AND THEIR ROLE AS PREDATORS OF THE APPLE APHID, APHIS POMI (HOMOPTERA: APHIDIDAE)1

Published online by Cambridge University Press:  31 May 2012

Kevin T. Tracewski
Kevin T. Tracewski
Affiliation:
Department of Entomology, University of New Hampshire, Durham, New Hampshire 03824
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Abstract

The role of Leucopis sp. nr. albipuncta larvae in controlling outbreaks of the apple aphid, Aphis pomi De Geer, was studied in five New Hampshire orchards. There was significant correlation of larval density with changes in the density of apple aphid populations, and larvae were widely distributed throughout the apple growing region of the state. The egg, three larval instars, and puparium are described and illustrated.

Résumé

Le rôle des larves de Leucopis sp. près de albipuncta dans la prévention des épidémies du puceron vert du pommier, Aphis pomi De Geer, a été étudié dans cinq vergers du New Hampshire. Une corrélation significative de la densité larvaire de Leucopis avec des changements de la densité de pucerons a été observée, et les larves étaient réparties sur toute la région de pommiculture de l'état. L'oeuf, les trois stades larvaires et le puparium sont décrits et illustrés.

Type
Articles
Information
The Canadian Entomologist , Volume 115 , Issue 7 , July 1983 , pp. 735 - 742
Copyright
Copyright © Entomological Society of Canada 1983

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