countyspotter's picture

The Last Stand

Observed: 12th October 2009 By: countyspottercountyspotter’s reputation in Invertebrates
The End

I found these two engrossed in a fight to death and thought it made an amazing picture. I think its a (Dysdera crocata aka the spider) and a greenbottle (Lucilia Caesar). Would love feedback.


No identification made yet.

Species interactions

No interactions present.


Rob Coleman's picture

The red carapace on the

The red carapace on the spider looks like Dysdera, but I don't think they spin webs to catch prey (they can produce silk however, as they produce a silken cell which they live in during the day). It may just be pinching the fly out of another spider's web, of course.

Rob Coleman

Martin Harvey's picture

spider and fly

I agree with Rob that this would be unusual behaviour for Dysdera, which is usually ground-dwelling and preys largely on woodlice rather than flies, but I can't really tell from the photo what species it might be.

The fly could be a Lucilia greenbottle, but there are very similar-looking green flies in other families as well.

Entomologist and biological recorder