Species Account

Select species and region:



Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and fairly widespread resident.

Local Record: Grade 1   See here for explanation

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

Forewing: 18-24mm.

Foodplant: Birch and Alder.

Regional breakdown:

Year first recorded19401883188318831880
Year last recorded20142014201420142014
Number of records547559577904181
Number of individuals3735857071336235
Unique positions9812217916334
Unique locations9311617216430
Adult records526538521867178
Immature records71421

For the county, we have a total of 2768 records from 575 sites. First recorded in 1880.


71.012 Iron Prominent 08
© Nancy Stedman, Aug 2018
71.012 Iron Prominent 07
© Tony Moverley, 16 Jun 2015
71.012 Iron Prominent 06
© Andy Nunn
71.012 Iron Prominent 05
© Andy Nunn
71.012 Iron Prominent 04 larva
© Derek Parkinson
71.012 Iron Prominent 03
© Paul Kipling, 16 Jul 2010
71.012 Iron Prominent 02
© Charles Fletcher, 20 May 2002
71.012 Iron Prominent 01
© Damian Money

Species Account

Sutton & Beaumont, 1989: Widespread as larvae on sallow, birch and alder, and frequent at light in suitable areas of vice-counties 62-64. Very local in east VC61 where there is little suitable habitat and there is only a single record from Harmby in VC65 (FBS). However it has been recorded in Upper Teesdale, VC66 (Dunn & Parrack, 1986).

2012 (CHF): Common and widespread across most of the county in two overlapping broods. Commonest in broadleaved woodland but also coming into gardens.

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