Robust and rhagionid-like to slender and wasp-like flies, 2-25 mm long. Body not conspicuously hairy and without bristles; color blackish sometimes marked with yellow, or completely yellow. (James 1981)
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
