geoffEinon's picture

Sex or lunch?

Observed: 1st May 2011 By: geoffEinongeoffEinon’s reputation in InvertebratesgeoffEinon’s reputation in InvertebratesgeoffEinon’s reputation in Invertebrates
110501Bison&ColLake-18
110501Bison&ColLake-18 1
Description:

Seen on Hawthorn flower. I cannot identify either insect - nor do I know whether this is mating or predation

Identifications
Species interactions

No interactions present.

Comments

WilliamB's picture

Robber Fly

I think it's a Robber Fly eating Hawthorn Fly.

WB

Syrphus's picture

The eater is Empis

The eater is Empis tessellata, I think, which on size makes the victim Bibio marci. These (and other Empidids) are often seen mating while the female is well into dinner. I have not discovered if the male arrives while she is distracted, or whether there is a bit of courtship feeding, but it is a very common thing to see.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

grant burleigh's picture

Predator fly

Looks to me like Empis tessellata

geoffEinon's picture

Ta V M

Many thanks for such expert information