Main: (Noctuidae / Hadeninae)
73.248 [B&F: 2184] Northern Drab (Orthosia opima) (Hübner, [1809])


Local on saltmarshes, marshes, heathland, downland, golf courses and sand-dunes throughout much of the British Isles. In Hampshire and on the Isle of Wight much less common than formerly, with few recent records scattered through the three vice-counties, but perhaps overlooked amongst the myriad Clouded Drab. Wingspan 34-40 mm. Some of the darker, more unicolorous forms of Clouded Drab Orthosia incerta resemble the most common form of Northern Drab, f. brunnea but differ as follows: male antenna bipectinate; apex of forewing not pointed; subterminal line less conspicuous and less straight, particularly at extremities; cilia of hindwing pale fuscous (MBGBI Vol 9). Lead-coloured Drab Orthosia populeti is another possible confusion species, but that species has forewing with costa less straight and apex more rounded. Larva feeds on Sallow, Silver Birch, Downy Birch, Mugwort, Common Sea-lavender, herbaceous plants and woody plants, over-wintering as a pupa.

Flightime guide

Records Received By Year

% of total records
Max records: 10
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Percentage of Total Records

Total records
Max Percentage: 0.006563101
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Phenology - Adult Records

Max records: 20
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
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