Treble Brown Spot - Idaea trigeminata


Wingspan 23 to 25 mm. Usually unmistakable. The main diagnostic feature is a dark brown outer cross band pinched in two places on an otherwise rather plain whitish forewing.

Identification difficulty

Found around woodland edges and hedgerows.

When to see it

The adults are on the wing from late May to early July, and can be attracted to light.

Life History

The caterpillars feed on Ivy, Knotgrass and other low-growing plants.

UK Status

Local, mainly occurring in the southern parts of England and Wales. In a recent survey to determine the status of all macro moths in Britain this species was classified as local.

VC55 Status

It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map