Monday, 26 November 2012

A different world ...

West Sussex, 2 May 2012

As I have said before, there is always something to see …

The St Mark's Fly (Bibio marci) is a large hairy black fly belonging to the family Bibionidae. It is a species which shows strong sexual dimorphism (male pictured). It is common in late April and May in grassy meadows and fields, especially in the south. Swarms of the males can often be seen flying sluggishly up and down in the sunshine with their legs dangling below, looking for the females which are sitting not far below in the grass. When the females take wing they are seized by the males and mating takes place in the air.

You just have to look ...

No comments:

Post a Comment