Main: (Noctuidae / Noctuinae)
73.332 [B&F: 2122] Purple Clay (Diarsia brunnea) ([Denis & Schiffermüller], 1775)


Common in broad-leaved woodland and wooded heathland throughout much of the British Isles. In Hampshire and on the Isle of Wight much less common than formerly; in the summer of 1892, for instance, at Brockenhurst it was stated to be a continual pest at sugar. It occurs in deciduous woodland, and nowadays it is usually recorded as single specimens. Wingspan 36-45 mm. Distinguished from female Barred Chestnut D. dahlii by the darker wavy band between the postmedian and subterminal lines, the absence of the pale subterminal line which is characteristic of that species, and the blacker quadrate mark between the reniform and orbicular stigmata. Pale individuals could be mistaken for northern Ingrailed Clay D. mendica, but these are often more extensively orange-tinted and marbled, and slightly smaller (MBGBI Vol 9). Larva feeds on Foxglove, Bilberry, Heather, Sallow, Bramble, Silver Birch and Downy Birch.

Flightime guide

Records Received By Year

% of total records
Max records: 99
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Percentage of Total Records

Total records
Max Percentage: 0.04729578
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Phenology - Adult Records

Max records: 198
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
Click for distribution map

Web Hosting from Vision Internet Limited