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AULACORTHUM RHUSIFOLIAE (HOMOPTERA: APHIDIDAE), A NEW POISON IVY INHABITING APHID FROM ONTARIO

Published online by Cambridge University Press:  31 May 2012

W. R. Richards
Affiliation:
Entomology Research Institute, Canada Department of Agriculture, Ottawa

Extract

Apterous Viviparous Female. Colour when alive: antenna pale on basal half; head and thorax brownish; mesothorax to abdominal segment VIII shining black; legs pale. Colour when macerated: antennal segments I and II pale brown, segments III, IV colourless with pale brown apical annuli, segments V, VI brown; head and prothorax pale brown, nearly colourless; mesothorax to abdominal segment VIII dark brown; cornicles dark brown; femora and tibiae pale brown, nearly colourless; tarsi pale brown, slightly darker than tibiae; cauda faintly fuscous.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1973

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