Eupithecia trisignaria Herrich-Schaffer, 1848
Description: Wingspan 15-20 mm. Forewings pale brown with a glossy appearance. The most useful diagnostic feature is two dark-coloured blotches and a small black discal spot at the costal edge of the wing. The hindwings slightly paler with a small black discal spot.
Key Identification Features:
Flight Period: End of June until late August. Skinner gives late June and July as the normal flight period in Britain.
Status: Confined to southern counties. This species was previouslly regarded as being rare in N. Ireland. The first record, from the Enniskillen area of Fermanagh in the early twentieth century, was of larvae found feeding on Wild Angelica Angelica sylvestris. There are more recent records from the mid-1990s onwards from Aghalane Bridge and Crom Estate, Fermanagh, Hillsborough Forest, Down, Crockacleaven Lough, Tyrone and Dartry Lodge and Mullanary, Armagh.
Ecology: A species associated mainly with fens, wet woodland margins and other marshy habitats. Adults come to light in very small numbers. The larvae feed throughout September on the seeds of Wild Angelica Angelica sylvestris and Hogweed Heracleum sphondylium. It overwinters as a pupa.
World Distribution: Widespread throughout central Europe.
Bradley & Fletcher number: 1826 Agassiz number: 70.175
UK Moths account
|Thompson, R. S. & Nelson, B., 2003 (Oct 2). [In] The Butterflies and Moths of Northern Ireland |
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