Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Fairly common but restricted resident.

Local Record: Grade 2   See here for explanation

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

Forewing: 20-26mm.

Foodplant: Birch.

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 recorded1905200719821905
Year last recorded2011200720112011
Number of records292213446534
Number of individuals129714173429418
Unique positions251119542
Unique locations185115402
Adult records284013436368
Immature records0000

For the region, we have a total of 6534 records from 402 sites. Earliest record on file is in 1905.


2006 Lesser Swallow Prominent 06
© Will Bown
2006 Lesser Swallow Prominent 05
© Julian Francis
2006 Lesser Swallow Prominent 04
© Tom Morris
2006 Lesser Swallow Prominent 03
© Will Bown 25 July 2012
2006 Lesser Swallow Prominent 02
© Terry Box, 04 Apr 2004
2006 Lesser Swallow Prominent 01 right with Swallow (left)
© Terry Box, 16 Aug 2005

Species Account

Similar species: 2007 Pheosia tremula (Swallow Prominent).

For further information refer UK Moths.

Davey, P., 2009: A widespread species across Britain, the larva feeding on birch (Betulae spp.). In Dorset, the moth is common in birch woodland and locally abundant, particularly so amongst birch growing on sandy soils.

The species resembles the Swallow Prominent2007, and care is needed in identifying each correctly.


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