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70.145 (BF1861)

Bilberry Pug   

Pasiphila debiliata
Adult: 2
Resident, rare, very local on raised bogs. Scattered records on heathland, moorland and woodland in western parts of England and Wales, Very few, scattered records in western Scotland to Inverness-shire. Shows a long-term decrease in distribution.

See also Moth of the Week (04/07/2019)


Care needed to separate from other ‘pugs.’

Recording method

Easily disturbed by day from the foodplant Bilberry, flies at dusk, comes to light.

Life cycle

One generation. Overwinters as an egg on the foodplant. Larvae are present during April and May in spun leaves. Pupation takes place underground or among the foodplant.

Larval foodplants



The only known site in Dumfries and Galloway consists of birch and pine woodland with abundant Bilberry, on the edge of a raised bog.


First recorded for Dumfries and Galloway only in 1977 for VC73 at Kirkconnell Flow by Duncan, and in 2014 for VC72 at Kelhead Flow, Annan by Richard Mearns.  There are currently no records from VC74.

23 record(s) from 4 hectad(s) in D&G

VC74 VC73 VC72
Last recorded 2022 2014

 UK Moths website - further information on species (with photos)

 East Scotland Butterfly Conservation website - national distribution maps and phenology

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