Natural England Commissioned Report NECR234 A Provisional Assessment of the Status of Calypterate flies in the UK Calypterate First published 30th August 2017 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 This report should be cited as: Making good decisions to conserve species should primarily be based upon an objective FALK, S.J, & PONT, A.C. 2017. A Provisional process of determining the degree of threat to Assessment of the Status of Calypterate flies in the survival of a species. The recognised the UK. Natural England. Commissioned international approach to undertaking this is by Reports, Number234 assigning the species to one of the IUCN threat categories. This report was originally commissioned to update the threat status of some calypterate fly families. It is based on text originally submitted in 2005-12, but subsequently updated a number of times, most recently in late 2016. It provides a valuable repository of information on many species and should act as a springboard to further survey and work. Reviews for other invertebrate groups will follow. Natural England Project Manager - David Heaver, Senior Invertebrate Specialist
[email protected] Contractor - FALK, S.J, & PONT, A.C Keywords - Diptera, true flies, house flies, bluebottles, flesh flies , invertebrates, red list, IUCN, status reviews, IUCN threat categories, GB rarity status Further information This report can be downloaded from the Natural England Access to Evidence Catalogue: http://publications.naturalengland.org.uk/ .