Thread subject: Diptera.info :: Coelopa pilipes- with mite

Posted by ebbek on 19-01-2020 17:35
#1
Is Coelopa correct genus for this fly? From a sandy seashore in South Sweden two Days ago.

Regards

Krister
Edited by ebbek on 20-01-2020 14:59

Posted by ebbek on 19-01-2020 17:37
#2
And there is a mite (I Think) under the fourth tergite. Is it possible to say anything about possible mites on Coelopa? Unfortunatly I can´t make better Pictures of the mite at the moment.
Edited by ebbek on 19-01-2020 18:47

Posted by ebbek on 19-01-2020 17:38
#3
Another view on the mite.

Posted by eklans on 19-01-2020 18:18
#4
Hi Krister, that "mite" looks similar to the Strepsiptera, I find quit often on wasps (stylopised wasp). I've never read about flies being parasitised by these "twisted-wing insects" but it seems to be possible.

Eric

Posted by ebbek on 19-01-2020 18:35
#5
Yes, I had some thoughts about Strepsiptera too, interesting! Maybe there are species who parasites on flies?

Posted by eklans on 19-01-2020 19:20
#6
These species exist: "Strepsiptera of various species have been documented to attack hosts in many orders, including members of the orders Zygentoma, Orthoptera, Blattodea, Mantodea, Heteroptera, Hymenoptera, and Diptera." (English Wikipedia, Strepsiptera).
Can you try to make more fotos of the parasite?

Posted by ebbek on 19-01-2020 19:33
#7
Very interesting - I will try and make better fotos!

Posted by ebbek on 19-01-2020 21:23
#8
There are several legs on it, so it is not Strepsiptera - looks more like a mite! No better fotos so far unfortunatly.

Krister

Posted by Tony Irwin on 20-01-2020 10:14
#9
The fine hairs on the legs suggest that this might be Coelopa pilipes

Posted by Xylosoma on 20-01-2020 10:37
#10
It definitly is Coelopa pilipes. There are frequently mites sitting on Coelopidae using the flies as transport from one heap of seaweed to another (phoresy). Those mites are usually not connected between tergites. I cant say what it is.
Regards
Xylo

Posted by ebbek on 20-01-2020 15:00
#11
Very nice - thanks to all of you for help!

Regards

Krister

Posted by Volker Achterberg on 16-11-2023 10:10
#12
There is a 2009-paper about the mite Thinoseius fucicola on Coelopa seaweed flies, mainly the male ones:
https://academic.oup.com/ee/article-abstract/38/6/1608/360395?redirectedFrom=fulltext&login=false- (unfortunately w/o any picture)
Direct access to this paper, see reference list in the Wikipedia article about C. frigida:
https://en.wikipedia.org/wiki/Coelopa_frigida
Best regards,
Volker