Willow Beauty Geometridae

Peribatodes rhomboidaria (Denis & Schiff., 1775)

Description: Wingspan 40-48mm. Adults are generally smoky-grey colour although this can vary between individuals. The forewings have a mottled appearance with small darkish patches along the costa.

Similar Species: This species is often confused (especially when worn) with the Mottled Beauty A .repandata which can often lead to misidentifications. Worn specimens need to be checked carefully.

Key Identification Features:

Sets:  male upperside

Flight Period: Early June to the beginning of September.

Status: Widespread and frequently encountered in Down and Armagh, sporadic elsewhere, with scattered sites in Fermanagh Londonderry and north Antrim. It probably occurs more widely in the west than records suggest.

Ecology: Found on a wide variety of habitats including suburban gardens. Adults come frequently to light in moderate numbers. The larvae can be found from early autumn to late spring of the following year on a variety of trees including Hawthorn Crataegus monogyna, birch Betula spp., Ivy Hedera helix, plum Prunus and Garden Privet Ligustrum ovalifolium. It overwinters as a larva.

World Distribution: Throughout Europe, Syria and Iran.

Bradley & Fletcher number: 1937 Agassiz number: 70.258

Additional information:

UK Moths account

Caterpillar: 

 Thompson, R. S. & Nelson, B., 2003 (Oct 2). [In] The Butterflies and Moths of Northern Ireland
http://www.ulstermuseum.org.uk/lepidoptera/species.asp?item=6028

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