Main: (Noctuidae / Noctuinae)
73.344 [B&F: 2108] Lunar Yellow Underwing (Noctua orbona) (Hufnagel, 1766)


Nationally scarce (Nb) in dry sandy areas, heaths and open woodland, discontinuously in parts of Britain, greatly declined, a priority species under the UK Biodiversity Action Plan. In Hampshire and on the Isle of Wight there are strong colonies at Porton Down and Cholderton, both on the Wiltshire/Hampshire border, and the moth is recorded occasionally elsewhere, often erroneously. Wingspan 38-45 mm. Distinguished from Lesser Yellow Underwing N. comes by its narrower forewing and straighter costa, and by the presence of a black mark towards the apex. Distinguished from small examples of Large Yellow Underwing N. pronuba by the presence of a curved discal spot on the hindwing which gives this species its vernacular name.

Please note that no records of this species from new sites outside of established colonies at Cholderton and Porton Down will be accepted without photographic evidence of the hindwing

Larva feeds on various grasses and herbaceous plants, including Sheep's-fescue, Wavy Hair-grass, Cock's-foot, Common Couch, Reed Canary-grass, Meadow Buttercup, Creeping Cinquefoil, Cowslip and Chickweed.

(Update: July 2019)

Flightime guide

Records Received By Year

% of total records
Max records: 5
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: 0.0037253383
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: 6
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

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