This gloomy fly was resting in the sun on a grapevine leaf for a short while in my garden, 12th June 2009, Gent, Belgium
by bonitin Jun 13, 2009 11:07 AM
Its larvae are parasites of solitary bees
by bonitin Jun 13, 2009 11:10 AM
Very large size of a quarter if not bigger. Very intriguing looking. Thought it may be a horse fly at first bi
by Gstarks Jul 30, 2021 12:48 PM
