Silver Hook Noctuidae

Deltote uncula (Clerck, 1759)

Description: Wingspan 22-26 mm. Forewings olive brown with a cream-coloured streak suffused with grey running from the basal area to the apex of the wing. There is also a spur-like projection edged in white running obliquely from the streak and pointing downwards towards the apex. Subterminal fascia suffused with cream. Hindwings fuscous with fine veining and usually with a tiny discal spot.

Key Identification Features:

Sets:  male upperside

Flight Period: Late May to the end of June.

Status: Widely distributed and found in all counties but only in scattered sites outside Armagh and Down where its strongholds are.

Ecology: A small attractive species found mainly on bogs and heaths. Adults are easily disturbed from grassy tussocks and low vegetation during the day. They also are attracted to light and flowers in small numbers from dusk onwards. The larvae feed during July and August on various sedges Carex spp. and other coarse grasses. It overwinters as a pupa.

Bradley & Fletcher number: 2412 Agassiz number: 73.026

Additional information:

UK Moths account


 Thompson, R. S. & Nelson, B., 2003 (Oct 2). [In] The Butterflies and Moths of Northern Ireland