|Caterpillar of Eriogaster catax|
Eriogaster catax has a wingspan of 27–35 millimetres (1.1–1.4 in) in males, of 35–45 millimetres (1.4–1.8 in) in the females. This species shows a pronounced sexual dimorphism. The males are smaller and have feathery antennae. In males the basal part of the front wing is yellow-orange, while the outer part is pinkish-brown. In the females the front wings are browner. In both sexes, the front wings show a transversal line and a white discal spot within a dark border. Hind wings have no drawing. Females are larger and at the end of the abdomen they have a tuft of dense gray-black hairs.
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- P. J. Van Helsdingen, Luc Willemse, Martin C. D. Speigh Background information on invertebrates of the Habitats Directive and the Bern Convention
- Moths and Butterflies of Europe and North Africa
- Fauna europaea