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At first...it is nice to see, the site is working again!!
(al good things, are coming slowly..;))

I found today on a dead deer this Hippoboscidae (4 species)
(24-01-2008 Dwarsgracht, Netherlands)

Maybe a species possible ..?
(is it possible that the flies are common on a deer, or are they fall of a birth, thats eaten from the deer..?)

Greatings Joke

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Hello,

Lipoptena cervi seems me clear, with the transverse zones on the abdomen, bearing seta oriented backwards.

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I did look at the gallery, but I didn't recognize the transverse zones on the abdomen at the other L.cervi.
But it is nice to know the species now....so thanks !!!

Joke van Erkelens

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The tranverse zones are not typical, any pregnant Hippoboscid will show these. The absence of wings is typical.

So I agree with Lipoptena cervi.


Theo

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Are there little remnants of the wings? I think I see those. I know that wings fall of, but don't know if the whole does so, or usually a little part remains. I only have a winged specimen, that was trying to feed on my dog in a forest. BTW, these flies can get so annyoning. Dozens of them tried to land on my head, especially my ears! I head to put my headphones in my ears so I could keep on photographing...

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.......Brrrrrrrr:o
I read also that L.cervi in particular lives on deers, and that the wings break along a special line on the wing.
And Theo told that the transverse zones only are visible when they are pregnant.......than I go catch one tomorrow to examen for larve's (and I hope it wil die, with Ether/aceton...mosly the louse on flies live still after several days)

Joke van Erkelens

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Joke, you are winning my heart with all this flies from carrion!
Come back to this deer, end of Jan is a good time. May be Centrophlebomyia furcata is not yet completely extinct from the Netherlands!

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I'm blushing...;)
And I'm also very excited about the deer (he lies about 40m from my house) and only 5 days dead, so I wil hope to see many flies and other insects.......and maybe a Centrophlebomyia fuscata..:D

Joke van Erkelens

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Indeed, you can see remnants of the wing.
The wing break, as described, near the base. The fly deliberately breaks its wing when it has found its correct host.


Theo

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In Russia L.cervi is common species (at least one August out of three) and one can easily observe process of wing breaking on his/her own body!

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In Russia, check for L. fortisetosa, which flies earlier in the year (June - August, so some overlap in August with cervi).

Here in West Europe, there is only 1 species.


Theo

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Thoe,



Thanks for the correction. I was quoting the Faune de France by Falcoz (1926).

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Hello, Theo!



Are you sure? In the german checklist there is also L. fortisetosa, and three or four years ago I wondered about some deer flies which landed on me in mid June, when I was in an area with many roes (northwest Germany). They looked exactly like the well known L. cervi which normally fly from late September to November here. At that time I did not know about fortisetosa.