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Diptera.info :: Identification queries :: Diptera (adults)
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spider commensal
Dimitri Geystor
#1 Print Post
Posted on 17-02-2006 18:11
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Greetings,

I was busy photographing a large Araneus diadema female who had just captured a bee, and was actively wrapping it up, not minding at all my close approach.

Then to my surprise I noticed a small fly, some 2-3mm long, pacing all over the captured bee, indifferent to the spider and obviously feeling quite at home.

Is it a known behaviour, and do you have any ID suggestions ?

general picture

closer look at the tiny fly

Regards,

Dimitri
 
http://www.macroscopies.com
diphascon
#2 Print Post
Posted on 17-02-2006 21:04
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Hello Dimitri,

some Milichiid flies are known to show such a "kleptoparasitic" behaviour. But I can't tell you if the fly on your pics is reall a Milichiid.

Have a look at the following thread:
http://www.dipter...ead_id=528

cheers - martin
 
Dimitri Geystor
#3 Print Post
Posted on 17-02-2006 21:29
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Martin,

Thanks for the suggested thread.

It was a pleasure to see another beautiful and informative picture by Sarah (a regular visitor to the insectes.org forum).
From there on a hop to Irina Brake's site narrowed the search even more to Desmometopa sp (Milichiidae).

I've thus learnt a number of things to-night.

Dimitri
 
http://www.macroscopies.com
Nikita Vikhrev
#4 Print Post
Posted on 17-02-2006 21:30
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Location: Moscow, Russia
Posts: 9551
Joined: 24.05.05

I also have a photo of 2 small flies having interest to Ceriagrion sp. in sprider web. Photo from Thailand.
www.diptera.info/forim/5-1234-3.jpg
Nikita Vikhrev - Zool Museum of Moscow University
 
Paul Beuk
#5 Print Post
Posted on 18-02-2006 10:25
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Location: Netherlands
Posts: 19403
Joined: 11.05.04

It is not the first time they popped up in the forum:
http://www.dipter...ead_id=528
Paul

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Paul Beuk on https://diptera.info
 
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