References, resources and links

We are continually collecting together important references, resources and links.

Link sections on this page . . .

	Survey tips and recording notes index page
	Key references
	Useful elm information references and website links
	Video footage links

Key references

In the 1980s, Martyn Davies with volunteer help, undertook a three year study of the White-letter Hairstreak. The two reports and BC booklet, were the result of this study.

The country-wide study, involved egg and larval searches and flight period surveys.

Listed below are full details of the two reports (with key points) and the booklet he published (in pdf format).........


• White-letter Hairstreak Project: Annual report 1984 (sponsored by Associated Tyre Specialist & World Wildlife Fund UK) ~ M.G. Davies BSc.


• Area reports………….regional and county status
• Elms across Europe – on Sapporo Autumn Gold
• Outlines and notes on the white-letter hairstreak project – various
• Notes on the identification of elm
• White-letter Hairstreak Project: Annual report 1985 (sponsored by Associated Tyre Specialist & World Wildlife Fund UK) ~ M.G. Davies BSc.
• Area reports………….regional and county status
• Aberrations
• Elm ‘Sapporo Gold’
• Experimental work – mark/recapture
• Adrian Hoskins report – objectives for 1985 – ova – breeding sites – larvae – pupae – adults – feeding habits – times of day of adult activity – weather condition favoured by adults – weather conditions which curtail adult activity – colonisation of new sites – Dutch elm disease
• Display material
• White-letter Hairstreak booklet [1992] ~ Martyn Davies and produced by Butterfly Conservation [2mb in pdf format]

If anyone would like more information on the three year project .
• The Millennium Atlas of Butterflies in Britain and Ireland, Asher et al., 2001, Oxford University Press.

• The State of Butterflies in Britain and Ireland, Fox et al., 2006, Pisces Publications

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Useful elm information references and website links

• Butterfly Conservation Priority Species Factsheet - White-letter Hairstreak
• An evaluation of disease - resistant hybrid & exotic elms [2005] by Andrew Brookes and produced by the Hampshire & Isle of Wight Branch [10.21mb in pdf format]
• 'Synopsis of Elm Taxa Found In South East England including Red glands and spiny hairs on English/Atinian Elm and the documented history of the tree',Ken Adams, Essex Field Club
• Studies on Ulmus VII. Essex Elms ~ R. H. Richens [Forestry, 1967; 40: 185-206 full pdf by subscription only]
• Hertfordshire Elms ~ extract from the Flora of Hertfordshire [Dony, John G., Flora of Hertfordshire, 1967, Hitchin Urban District Council]
• Elm identification guide [2007]. This leaflet was written by Anne Woollett and Mike Trier and produced by Hackney Environment Forum
• London Natural History Museum ~ The Elm Map project
• The Elm Map - identification guide
• Wikipedia - Elm guide
• Wikipedia - Wych Elm guide
• Wikipedia - information on Dutch Elm Disease
• Rob Foster's Blog page - elm in SK18
• BC Kent Branch - Purple Hairstreak Survey, including many tips on how to find Purple Hairstreak eggs NEW LINK

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  Video footage links

  • Video footage of White-letter Hairstreak - with thanks to Rob de Jong of Farm Lator, Hungary