Tuesday, July 25, 2006
A conopid fly - Thecophora sp.
Late this afternoon I was giving some detailed scrutiny to the ragwort in M3 when I noticed a small, unusually-shaped fly visiting some of the flowers. I tried to photograph it, but is was too fast and eventually I caught it.
It turned out to be a Thecophora species parasitic on solitary bees.
Again, as with the smaller plants, I often first spot things like this through binoculars having sat quietly for a while. Many entomologists, I suspect, walk through an area, but rarely stop, wait and watch, so they just do not see many of the things that are about.
I originally had this down as Zodion cinereum and I am grateful to Jere for correcting this.