Empis crassa explained

Empis crassa is a species of fly in the family Empididae. It is included in the subgenus Polyblepharis.^[1] It is found in the Palearctic.^[1]

Notes and References

1. Book: Collin, J.E.. British Flies VI: Empididae Part 2: Hybotinae, Empidinae (except Hilara). 4. 1961. Cambridge UP. Cambridge. 329.