williamsnr's picture

Dung fly parasitized?

Observed: 16th May 2012 By: williamsnrwilliamsnr’s reputation in Invertebrateswilliamsnr’s reputation in Invertebrateswilliamsnr’s reputation in Invertebrates
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Description:

Dead yellow dung fly with rather unusual swollen abdomen on nettle . Is this the result of a parastoid?

Identifications
Species interactions

No interactions present.

Species with which dung fly (Scathophaga stercoraria) interacts

Comments

ophrys's picture

Entomophthora

An Entomophthora fungus, I imagine. Something like E. muscae...

http://www.fieldmycology.net/GBCHKLST/gbsyns.asp?intGBNum=2232

Ian
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Nick Upton's picture

Fly killer fungus

I'd agree it's almost certainly Entomophthora muscae which does for a lot of flies and seems to drive them to expire on vegetation tips with their wings spread (an exposed position would aid spore dispersal and some fungi control ants in even more bizarre ways). I once posted an image of a yellow dung fly in a similar state on the diptera.info site and experts confirmed my guess of E.muscae and one chipped in as follows: "I have seen this fungus on much species in different families. That families were Muscidae, Scathophagidae, Fanniidae, Empididae and Syrphidae. But from all, Scathophaga stercoraria seems to be the most vulnerable one. Also Bibio marci seems to be infected much times."

Nick Upton, naturalist and photographer.

williamsnr's picture

Fly killer fungus

Thanks, Nick, for your informative comments.

Nick Upton's picture

Killer fungi

No probs. Who'd be a fly with this stuff around?!

Nick Upton, naturalist and photographer.