Mike Dale says: In solandriana the sterigma are wider and flat topped compared to brunnichana which are narrow, elliptical with usually a small indentation on the apex.

The signa in solandriana are both placed towards the bottom of the corpus bursa and orientated horizontally, whereas in brunnichana there is one much higher in the corpus bursa and both are orientated at a 45 degree angle approx. Razowski* (plate 68) appears to indicate this, but Nel** (planche 98) does not, and the feature should be used with caution.


*Tortricidae of Europe
Vol.2: Olethretinae
Józef Razowski
František Slamka 2003
ISBN 80-969052-0-1

**Atlas des Genitalia femelles des Lépidoptères Tortricidae de France
Jacques Nel
R.A.R.E. 2005
ISSN 1288-5509

In solandriana the sterigma are wider and flat topped compared to brunnichana which are narrow, elliptical with usually a small indentation on the apex.

The signa in solandriana are both placed towards the bottom of the corpus bursa and orientated horizontally, whereas in brunnichana there is one much higher in the corpus bursa and both are orientated at a 45 degree angle approx.

Comparison between the valvae shape of Epinotia brunnichana and E. solandriana

Eye, Suffolk, 23 July 2006

Uffmoor Wood, Worcestershire.
Ex larva in rolled birch leaf. July 2013.

Ex larva on birch, Wyre Forest, Worcestershire. June 2012.

To light. Whippendell Woods, Watford, Herts. 01 vii 2011.

To light. Whippendell Woods, Watford, Herts. 01 vii 2011.

emerged 23.6.15 - from larva on birch, Lindow Common, Cheshire 13.5.15.

emerged 23.6.15 - from larva on birch, Lindow Common, Cheshire 13.5.15.

On Betula, Wyre Forest, Worcestershire. Imago reared. May 2012.

Uffmoor Wood, Worcestershire.
In rolled Betula leaf. Imago reared.

feeding signs on birch - Lindow Common, Cheshire - 23.4.17.