Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Scarce and local resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, Jun-mid Aug.

Forewing: 8-10mm.

Foodplant: Goat Willow, Grey Willow, Eared Willow.

Regional breakdown:

Year first recorded19041883188318831883
Year last recorded20142014201420142014
Number of records49507617720
Number of individuals425611430328
Unique positions2529353312
Unique locations2328333312
Adult records40497617717
Immature records51002

For the county, we have a total of 372 records from 129 sites. First recorded in 1883.


70.147 Slender Pug 03
© Andy Nunn
70.147 Slender Pug 02
© Charles Fletcher
70.147 Slender Pug 01
© Terry Box, 2 Aug 2011

Species Account

Sutton & Beaumont, 1989: This species is inconspicuous both as larva and imago and will only usually come in numbers to a light close to the foodplant, so it is probably much more frequent than it appears.

2012 (CHF): Scattered records from all across the county. This species is extremely small compared with other pugs and can be mistaken for Maple Pug. Peak flight time is around 1st August and records more than four weeks away from this time should be examined critically. It tends not to wander far from its foodplant (sallows).

See background to species accounts.  Index of Vernacular names - Search - Random Species