During 2018, the Tanyptera Trust's North West Invertebrates project commissioned a survey of two horseflies in north-west England: Cheshire Horsefly (Atylotus plebeius) and Broad-headed Horsefly (Hybomitra lurida). These species are known from moss and bog habitats in the Cheshire Plain, but neither had been recorded since the 20th century.
A section on larvae and other early stages has been added to the Soldierflies and Allies Recording Scheme website. This is work in progress and will hopefully build up into a useful resource.
