Flies That Can't Fly
Brachypterous flies in UK pitfall traps & mouse and vole runs
Some notes on brachypterous flies to look out for in UK/Europe can be seen in Dipterists Digest Vol 2, 1989 : https://dipterists.org.uk/digest
CHLOROPIDAE
Crassivenula brachyptera - found in pitfall traps in Suffolk heathlands
SPHAEROCERIDAE
Spelobia pseudonivalis - recorded from vole and mouse runs
Minilimosina gemella - taken in pitfall traps in upland localities but more recently, found in lowland too
EPHYDRIDAE
Nostima semialata - localities are calcareous/neutral short-turfed grassland
