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NEW DESCRIPTIONS OF LARVAE OF FOREST INSECTS, III, ZANCLOGNATHA, PALTHIS, AND AUTOGRAPHA, (LEPIDOPTERA, PHALAENIDAE)*

Published online by Cambridge University Press:  31 May 2012

A. W. A. Brown  and
W. C. McGuffin
A. W. A. Brown
Affiliation:
Ottawa, Ontario
W. C. McGuffin
Affiliation:
Ottawa, Ontario
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Extract

Penultimate Instar. Head width 1.0 to 1.3 mm. Body length 7 to 10 mm. Otherwise similar to ultimate instar.

Ultimate Instar. Head width 1.3 to 1.5 mm. Body from 9 to 11 mm. long and from 1.5 to 1.7 mm. wide; shape subcylindrical, broadest at first abdominal segment, eighth abdominal segment with a dorsal swelling; skin densely covered with minute conical granules; ground colour pale yellow, cream-coloured, or greyish-white, heavily mottled with dark brown, dark grey, or ruddy-brown, often with a pink suffusion, venter lightly tinged with reddish-brown or even green.

Type
Articles
Information
The Canadian Entomologist , Volume 74 , Issue 3 , March 1942 , pp. 52 - 56
Copyright
Copyright © Entomological Society of Canada 1942

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References

* Contribution No. 2119 from the Division of Entomology, Science Service, Department of Agriculture, Ottawa. This is the third of a series of contributions from the Canadian Forest Insect Survey.