Blossom Underwing - Orthosia miniosa


Wingspan 31 to 36 mm. A rather variable species, usually with warm sandy or pinkish browns. The underwing is the distinctive feature, being pinkish white and showing up well in the light of a moth trap. This distinguishes it from the rest of the group.

Identification difficulty

Visit Willow blossom as well as bright lights.

When to see it

Like many related species, the moths fly during March and April.

Life History

The caterpillars are quite attractive, being greyish marked with yellow/orange and black. When young they feed gregariously on oak (Quercus) in a silken web, but later separate. They may also then feed on low plants.

UK Status

One of the less common spring Orthosia species, which occurs locally in southern England and Wales, more infrequently in north-west England and Ireland. 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 coming mostly from the south Rutland area. L&R Moth Group status = D (rare or rarely recorded).

73.243 BF2183

Leicestershire & Rutland Map


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

UK Map

Species profile

Common names
Blossom Underwing
Species group:
Records on NatureSpot:
First record:
29/03/2014 (Johnson, Andrew)
Last record:
07/05/2024 (Timms, Sue)

Total records by month

% of records within its species group

10km squares with records

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