Species Account

Select species and region:



Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Common and fairly widespread resident.

Local Record: Grade 2   See here for explanation

Flight time: Two generations, Apr-Jun, Jul-Aug.

Forewing: 22-28mm.

Foodplant: Aspen, poplars, sallows and willows.

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 recorded1905200719841905
Year last recorded2011201020112011
Number of records164222893866
Number of individuals245965606050
Unique positions231212490
Unique locations182210388
Adult records140722873392
Immature records0000

For the region, we have a total of 3866 records from 388 sites. Earliest record on file is in 1905.


2007 Swallow Prominent 03
© Julian Francis
2007 Swallow Prominent 02
© Tom Morris
2007 Swallow Prominent 01 left with Lesser (right)
© Terry Box, 16 Aug 2005

Species Account

Similar species: 2006 Pheosia gnoma (Lesser Swallow Prominent).

For further information refer UK Moths.

Davey, P., 2009: A widespread species across Britain, the larva feeding on sallow and willow (Salix spp.) and poplar (Populus spp.). In Dorset, the moth is widespread across the county and frequent in damp areas where sallow occurs, rising to common where poplars grow; the moth tends to be rare where the host foodplants are absent.

Hill, L., 2013:

Diagnostics include: white, slightly wavy line running through the dark anal patch of the hindwing; forewing lacks distinct white wedge-shaped tornal streak; dark costal shading extends beyond one-half from the termen.


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