Natural England Commissioned Report NECR191 A review of the status of the caddis flies (Trichoptera) of Great Britain Trichoptera Species Status No.27 First published 11 March 2016 www.gov.uk/natural -england Foreword Natural England commission a range of reports from external contractors to provide evidence and advice to assist us in delivering our duties. The views in this report are those of the authors and do not necessarily represent those of Natural England. Background Making good decisions to conserve species WALLACE, I.D. 2016. A review of the status of should primarily be based upon an objective the caddis flies (Trichoptera) of Great Britain - process of determining the degree of threat to Species Status No.27. Natural England the survival of a species. The recognised Commissioned Reports, Number191. international approach to undertaking this is by assigning the species to one of the IUCN threat categories. This report was commissioned to update the threat status of caddis from work originally undertaken in 1987 and 1991 respectively, using the IUCN methodology for assessing threat. Reviews for other invertebrate groups will follow. Natural England Project Manager - Jon Webb,
[email protected] Author - I.D. Wallace
[email protected] Keywords - Caddis flies, invertebrates, red list, IUCN, status reviews, GB rarity status, Trichoptera Further information This report can be downloaded from the Natural England website: www.gov.uk/government/organisations/natural-england. For information on Natural England publications contact the Natural England Enquiry Service on 0845 600 3078 or e-mail
[email protected]. This report is published by Natural England under the Open Government Licence - OGLv3.0 for public sector information.