A large Scuttle fly that apparently parasitises Bibio marci. The specimen was taken and examined under a microscope
No interactions present.
Thanks for posting this one, Jeremy - I've never tried keying a scuttlefly, so it's good to hear what sort of features are useful to look at. :o)
Good magnification needed, looking at flattish rows of fine black hairs on a black tibia - they're not too bad so long as the genus isn't Phora, then it's a slide-mounted epandrium and so on, and a Deplonevra I keyed to genus needs the hind leg mounting to go further. Otherwise less scary than I'd thought, and the raised ocellar area is hilarious.. most unusual
I'll try and get some close-ups of some of the features and add them
latest pics and diptera videos
My copy of Disney (Handbook 10.6 p.19) says that the larvae of Borophaga incrassata parasitize the larvae of Bibio marci.
My Flickr photos...
- as does my copy also (1983).
On another page it says 'Widespread in lowlands of England'. The scant nbn pattern of what must be a very under-recorded species does suggest a southern bias
Where does the reference to parasitising honey bees come from...a different book?
It is recorded from Yorkshire, but not VC61 and I don't recall seeing one here.
Lat/Lng: 51.9662, -1.9271
OS grid ref: SP051297