Species Account

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Summary Data

Season (Adult / Immature):

National Status: Nb

Local Status: Rare and very local resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, May-Jun.

Forewing: 8-10mm.

Foodplant: Common Valerian.

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

Year first recorded19901990
Year last recorded20112011
Number of records2958
Number of individuals187374
Unique positions1938
Unique locations1122
Adult records2754
Immature records12

For the region, we have a total of 58 records from 22 sites. Earliest record on file is in 1990.


1821 Valerian Pug 02
© Debra Saunders
1821 Valerian Pug 01
© Martin Cade, 10 Jun 2010

Species Account

Similar species: 1813 Eupithecia harworthiata (Haworth's Pug) and 1814 Eupithecia plumbeolata (Lead-coloured Pug).

For further information refer UK Moths.

Davey, P., 2009: A local species in Britain, the larva feeding on the flowers and ripening seed capsules of common valerian (Valeriana officinalis). In Dorset, the moth is very local, and colonises three different habitat types: woodland rides on chalky soil, reed-bed and rocky coast. It is on the wing between mid-May and late June.

Inland: Larvae have been found feeding on common valerian growing along woodland rides on chalky soil in the north-east of the county, for example, Stubhampton Bottom hosts a colony; the moth has been recorded from reed-bed habitat containing common valerian on the River Frome at Wareham.

Coast: Common valerian is absent from the coastal belt and yet the moth is common very locally in the quarries and undercliffs that characterise Portland and Purbeck. In these localities red valerian (Valeriana rubrum) hosts the moth. Searching valerian flowers and seeds from mid-July for the fully exposed larvae may well yield more localities for this potentially under-recorded species.

It is recommended that this species be included in management plans for wetland sites containing common valerian, and for coastal sites that contain red valerian.

This species is similar to Haworth's Pug1813 and Lead-coloured Pug1814. Diagnostics include: a larger pale tornal spot on a more elongated forewing and on the hindwing; less grey in the ground colour; proximity of valerian plants.


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