Spruce Carpet - Thera britannica
Wingspan 18-25 mm. Triangular in shape, though sometimes seen with wings raised together 'butterfly like'. Colouring is a mixture of greys, browns and buffs.
Spruce Carpet is similar to the Spruce Carpet, Pine Carpet and Grey Pine Carpet. A comparison can be found at the following LINK

Wherever Spruce and Douglas Fir are found.
There are two broods, flying from May to July and then in September and October.
The larvae feed on Spruce and Douglas Fir.
Found throughout Britain in suitable habitat, though less common in Scotland and Ireland. In a recent survey to determine the status of all macro moths in Britain this species was classified as common.
Fairly frequent but not common in Leicestershire & Rutland. L&R Moth Group status = B (scarce resident or restricted distribution or regular migrant)
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015