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(invertebrate zoology)
Either of a pair of posterior wings on certain insects, as the moth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the general name for moths of the closely related genera Catocala, Mormonia, and Ephesia. The wing-spread is 6–12 cm. The hind wings are brightly colored, with black stripes. Common underwings include Catocala fraxini, C. nupta, and Ephesia fulminea. The moths are distributed mainly in the forest zones of Eurasia and America. The caterpillars feed on the leaves of trees and shrubs, especially plants of the families Salicaceae (willows), Fagaceae (beeches), and Rosaceae (roses).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.