Yashca's picture

Unidentified diptera

Observed: 2nd June 2012 By: YashcaYashca’s reputation in InvertebratesYashca’s reputation in InvertebratesYashca’s reputation in InvertebratesYashca’s reputation in Invertebrates
Unidentified diptera
Description:
Identifications
Species interactions

No interactions present.

Species with which Bibio hortulanus interacts

Comments

Yashca's picture

Out of interest, how does one

Out of interest, how does one differentiate this from B. anglicus?

ophrys's picture

hortulanus

My picture from this morning.

http://www.ispot.org.uk/node/268201

anglicus has the vein r-m slightly longer than the base of vein R4+5, which is very different to hortulanus. You can see the very short cross vein r-m of hortulanus on my pictures. It is not clear on yours, but the whole appearance of yours and the time of year are right for hortulanus. hortulanus can be quite a lot bigger, too.