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Isturgia limbaria, the frosted yellow, is a moth of the family Geometridae.

Isturgia limbaria
Male, underside
Female
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Geometridae
Genus:	Isturgia
Species:	I. limbaria
Binomial name
Isturgia limbaria (Fabricius, 1775)
Synonyms
Phalaena limbaria Fabricius, 1775

Distribution

This species can be found in parts of Central and Southern Europe. It is extinct in Britain.[1][2]

Habitat

These moths inhabit heathers, edge of the forests and scrubby areas.[3]

Description

Isturgia limbaria has a wingspan of 26–30 millimetres (1.0–1.2 in). Forewings can reach a length of 13–15 millimetres (0.51–0.59 in).[3] The male has feathered antennae, while those of the females are filiform. The upperside of the wings is yellow or orange yellow with a chocolate brown margin, less evident in the females. The underside of the hindwings is pale yellowish or greyish and strongly mottled, with visible longitudinal white stripes.

Biology

These day-flying moths fly from mid April to mid August in one or two generation. The larvae feed on broom. They over-winter as a pupa.[4]

1. ^ The flight season refers to The Netherlands and Belgium. This may vary in other parts of the range.

References

External links

• Paolo Mazzei, Daniel Morel, Raniero Panfili Moths and Butterflies of Europe and North Africa
• Lepiforum.de
• Vlindernet.nl (in Dutch)

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