Pinion-streaked Snout Noctuidae

Schrankia costaestrigalis (Stephens, 1834)

Description: Wingspan 16-22 mm. A small micro-like species with pale brown forewings and a pale-coloured streak running obliquely from the apex to the dorsum of the wing. It is joined to a darker horizontal line in the median area of the forewing. Hindwings pale white with a small distinctive discal spot.

Key Identification Features:

Sets:  male upperside

Flight Period: End of June to late September.

Status: Confirmed as resident in N. Ireland in 1997 when it was discovered at the Peatlands Park, Armagh. Since then it has been found in a number of sites in all counties indicating a widespread distribution.

Ecology: A small micro-like species which has undoubtedly been overlooked in N. Ireland. Adults come to light and flowers especially sedges Carex spp. and thistles Cirsium spp. and Carduus spp. It has been recorded from a wide range of habitats, but it is particularly associated with damp woodland, bogs, fens and marshy places. The larval foodplant is unknown in the wild. Skinner states that the larvae have been reared on lettuce Lactuca and Wild Thyme Thymus polytrichus, mint Mentha spp. and willow Salix spp. leaves. It overwinters as a larva.

World Distribution: Eurasiatic; in western Europe it is local and has been found from Portugal as far north as Finland.

Bradley & Fletcher number: 2484 Agassiz number: 72.061

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=6586

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