Goera pilosa © Emma Ross
Trichoptera / Caddisflies / Sedges
Page editor: Dr Ian Wallace, Coordinator of the National Trichoptera Recording Scheme. Please submit information and comments by email to ian.wallace@liverpoolmuseums.org.uk.
A Beginner's Guide to Caddis (Order Trichoptera) by Dr Ian Wallace, published by Bulletin of the Amateur Entomologists' Society Vol 62 February 2003, gives an introduction to caddis and the identification of larvae with illustrations of various case constructions. The article has been made available by the Amateur Entomologists' Society.
The sedge of the water by Dr Ian Wallace, published by Salmo Trutta 2004 pp 70-73, includes a popular introduction to the group, with details of the life cycle and a calendar of when species are most likely to be seen in flight. The article has been made available by The Wild Trout Trust.
Trichoptera larvae © Steve Brooks
» The Beginner's Guide to Caddis by Dr Ian Wallace – PDF-File, 623.7 KB
» The sedge of the water by Dr Ian Wallace – PDF-File, 2.3 MB
Trichoptera Recording Scheme
The Trichoptera Recording Scheme is run by Dr Ian Wallace on a voluntary basis as part of the Riverfly Recording Schemes partnership. There are more than 200, 000 records of Trichoptera and an Atlas mapping the distribution of all species is planned for 2009.
Species records are welcomed.
The Schemes are supported by The Biological Records Centre (BRC), see Trichoptera Recording Scheme and Riverfly Recording Schemes
Adult Caddisfly Occurence Scheme - Stuart Crofts
The Adult Caddisfly Occurence Scheme was set up by Stuart Crofts in 2006 to improve our understanding of adult caddisflies, their distribution and flight patterns. A report is produced annually and species records are shared with the Trichoptera Recording Scheme.
Adult caddisflies around our British waters are generally under recorded. Stuart aims to improve our knowledge and awareness of distributions by collating data of where and when adult caddisfly species are on the wing in Great Britain and Ireland.
Your involvement in the initiative is welcomed. Involvement incorporates collecting any type of adult caddisfly (there are almost 200 species in the UK) found on or near the water, attracted by house lights or collected in moth traps.
See below for related articles, including the 2007 ACOS Report and data (which also includes information on how to take part in the Scheme). For further information, or to take part in the scheme register your contact details with Stuart via email pennine@troutbum.freeserve.co.uk.
Collecting adult riverflies © The Tweed Foundation » Adult caddisflies: just how important? Stuart Crofts Salmo Trutta 2007 p64-65 – PDF-File, 918.8 KB
» 2007 Report and data - Adult Caddisfly Occurance Scheme – PDF-File, 73.4 KB
Guides
Wallace I 2006 Simple key to caddis larvae Field Studies Council
Development of this key was supported by the Riverfly Partnership
Barnard P & Ross E 2008 Guide to adult caddisflies (Trichoptera) Field Studies Council
Development of this easy to use guide to Trichoptera families, with images and notes on each family, was supported by the Riverfly Partnership.
Edington JM & Hildrew AG 1995 Caseless caddis larvae of the British Isles Scientific publication 53 pp.134 Freshwater Biological Association
Wallace ID , Wallace B & Philipson GN 2003 Keys to the case-bearing caddis larvae of Britain and Ireland Scientific publication 61 pp.259 Freshwater Biological Association
Conservation status granted for four British caddisflies
Eight species of riverfy, four of which are caddisflies, qualified for conservation status on the new Biodiversity Action Plan Species list. Inclusion on the list means that there is government committment to support conservation measures for these species. See here for further information.
Glossosoma intermedium Small Grey Sedge
Hagenella clathrata Window Winged Sedge
Hydropsyche bulgaromanorum Grey Flag
Ironoquia dubia Scarce Brown Sedge
Links
General information on caddis
Freshwater Biological Assocition/Freshwater Life
