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Studies of Predators of the Balsam Woolly Aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae) X. Field Identification of Laricobius erichsonii Rosen. (Coleoptera: Derodontidae)12

Published online by Cambridge University Press:  31 May 2012

N. R. Brown  and
R. C. Clark
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Extract

Over the past ten years a number of exotic predators have been introduced into New Brunswick and other parts of North America as part of a biological control program against the balsam woolly aphid, Adelges piceae (Ratz.). Several of these have become established and others show considerable promise. As introductions continue it becomes exceedingly important that field workers be able to distinguish rapidly all stages of introduced and native predators. Field identification characters for some species (Chamaemyiidae and Syrphidae) have been published in previous papers in this series (Brown and Clark, 1956, 1960; Clark and Brown, 1957) and have been found to be very useful.

Type
Articles
Information
The Canadian Entomologist , Volume 94 , Issue 2 , February 1962 , pp. 191 - 193
Copyright
Copyright © Entomological Society of Canada 1962

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References

Brown, N. R., and Clark, R. C.. 1956. Studies of predators of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera : Adelgidae). I. Field identification of Neoleucopis obscura (Hal.), Leucopina americana (Mall.) and Cremifania nigrocellulata Cz. (Diptera, Chamaemyiidae). Canadian Ent. 88: 272–279.CrossRefGoogle Scholar
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Clark, R. C., and Brown, N. R.. 1957. Studies of predators of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera : Adelgidae). III. Field identification and some notes on the biology of Neoleucopis pinicola Mall. (Diptera : Chamaemyiidae). Canadian Ent. 89: 404–409.CrossRefGoogle Scholar
Clark, R. C., and Brown, N. R.. 1958. Studies of predators of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera : Adelgidae). V. Laricobius erichsonii Rosen (Coleoptera : Derodontidae), an introduced predator in Eastern Canada. Canadian Ent. 90: 656–672.CrossRefGoogle Scholar
Clark, R. C., and Brown, N. R.. 1960. Studies of predators of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera : Adelgidae). VII. Laricobius rubidus Lec. (Coleoptera : Derodontidae), a predator of Pineus strobi (Htg.) (Homoptera : Adelgidae). Canadian Ent. 92: 237–240.CrossRefGoogle Scholar