kc5359's picture

St Mark's flys

Observed: 24th April 2012 By: kc5359
S159 Neighbourhood Nature - current student
kc5359’s reputation in Invertebrateskc5359’s reputation in Invertebrates
St Mark's fly (fly 1)
St Mark's fly (fly 1
St Mark's fly (fly 2)

These flies were found in the leaf litter round the roots of a Hornbeam and a Yew tree.

Species interactions

No interactions present.

Species with which St Mark's Fly (Bibio marci) interacts


Roger Morris's picture

date of record

Surely the recorded date is wrong? This species normally occurs in April/May

kc5359's picture


Hi, I apologise for this, I changed the date but it reverted back unfortunately and I didnt spot it before I submitted it. It was seen on 24th April 2012. Thanks for the clarification.

ophrys's picture


If th date is definitely wrong, then I agree with marci (at least for the males, which are distinctive).


My Flickr photos...


kc5359's picture

Again apologies

Again apologies