This Trichoptera dataset originates from the National Trichoptera (Caddisfly) Recording Scheme. The survey data comes in four categories ranked in terms of contribution: volunteer recorders; statutory monitoring bodies, especially the Environment Agency; major national, and many local, entomological journals; museum collections. Recording is still continuing and annual up-dates are an aspiration. Many local check-lists are being prepared for electronic and paper publication. The data set contains records from a variety of well-circulated sources e.g the literature, that are considered incorrect. These are included, with an explanation, to flag-up that they have been assessed to assist researchers who encounter them elsewhere. More information on this dataset can be found in the Freshwater Metadatabase - BF_GBIF_15 (http://www.freshwatermetadata.eu/metadb/bf_mdb_view.php?entryID=BF_GBIF_15).