Mottled bee-fly  (Thyridanthrax fenestratus)

In Great Britain, this species is currently restricted to Dorset, West Sussex, Surrey, Berkshire and the New Forest and the Weald in Hampshire. It has been lost from many sites and has declined at many more. Elsewhere this bee-fly has a broad distribution in north-central Europe, however its status is unclear (2).

Inhabits open heathland preferably in a matrix of heather (Calluna vulgaris) of varying age classes, sparse vegetation and bare sand in unexposed conditions (5). The sand must not be too disturbed so as to make it loose (5).