Small photograph of a Small Tortoiseshell
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Great Yeldham
24 Mar 2012
Small photograph of a Small Tortoiseshell
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Great Yeldham
8 April 2011
Small Tortoiseshell
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Great Yeldham
23 April 2014
Small photograph of a Small Tortoiseshell
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Fleam Dyke, Cambs.
5 May 2013
Small photograph of a Small Tortoiseshell
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Great Yeldham
20 June 2011
Small photograph of a Small Tortoiseshell
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Great Yeldham
24 June 2011
Small photograph of a Small Tortoiseshell
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Great Yeldham
29 June 2011
Small Tortoiseshell
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Great Yeldham
25 July 2014
Small Tortoiseshell
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Great Yeldham
23 July 2013
Small Tortoiseshell
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Great Yeldham
23 July 2013
Small photograph of a Small Tortoiseshell
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Ouse Washes
12 Aug 2012
Small photograph of a Small Tortoiseshell
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Great Yeldham
1 Sept 2011
Small photograph of a Small Tortoiseshell
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Great Yeldham
15 Sept 2012

The Small Tortoiseshell, Aglais urticae

The Small Tortoiseshell was not very common here. It had almost disappeared by 2012 but after seeing larvae on the nettles in July 2013, record numbers of adults were seen all over the paddock in August.

It is thought that the arrival of a fresh parasitic wasp contributes to its reduced numbers.

The larval food plants are nettles. This species overwinters as adults which hibernate in dry places. The overwintered adults emerge in spring to produce the first of two broods. The adults of the first brood emerge in late June and July to produce the second brood which emerges in August and September.

Internal links: Home . Butterfly list . Main Gallery . Fleam Dyke . Ouse Washes

External links: British Butterflies by Steven Cheshire . UK Butterflies by Peter Eeles
Search menu at Cockayne database for forms and aberrations

Adults in flight: MOST SEEN on ANY ONE DAY in early, mid and late month thirds.
Small Tortoiseshell sightings at Roseland House, Great Yeldham.
March April May June July August Sept
2011 0 0 1 3 0 0 0 0 0 1 3 3 0 0 0 1 0 0 1 1 0
2012 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 0
2013 0 0 0 0 3 1 1 0 0 0 0 3 10 10 10 2 34 25 1 1 1
2014 1 3 8 5 8 3 3 1 3 3 6 14 14 19 9 4 6 2 1 1 0

Adults in flight: AVERAGE SIGHTINGS PER COUNTING DAY in early, mid and late month thirds.
Small Tortoiseshell sightings at Roseland House, Great Yeldham.         All species
March April May June July August Sept
2011 0 0 0.3 0.6 0 0 0 0 0 0.1 0.9 0.9 0 0 0 0.4 0 0 0.3 0.1 0
2012 0 0 0.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1 0 0.2 0.3 0
2013 0 0 0 0 1.0 0.2 0.1 0 0 0 0 1.0 4.9 7.3 3.8 1.5 12 12 0.4 0.3 0.6
2014 1.0 1.9 3.8 3.5 3.9 1.4 1.6 0.4 0.9 1.4 3.6 6.9 9.4 11 5.8 2.3 2.4 0.4 0.1 0.1 0

Weather notes:
2011. July - early August very wet.
2012. April - mid July very wet. August to mid September dry.
2013. Winter wet, March and early April, very cold. The rest of the spring was mostly cold. July, mostly very warm with caterpillars on the nettles. August, warm.
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6 June 2013