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Diptera.info :: Identification queries :: Diptera (adults)
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Opomyzoidea?
Nikita Vikhrev
#1 Print Post
Posted on 10-07-2005 13:34
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Moscow region, july, 3-4mm.
My work with identification key lead me to superfamily Opomyzoidae.
Am I right, please.
www.diptera.info/forim/5-0482-1.jpg
www.diptera.info/forim/5-0482-2.jpg
Nikita Vikhrev - Zool Museum of Moscow University
 
Paul Beuk
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Posted on 10-07-2005 15:00
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The top one is a member of the Lauxaniidae, but I am at the moment hesitant to put a name on it.
The bottom one, I think, is Clusia flava of the Clusiidae.
Paul

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Nikita Vikhrev
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Posted on 10-07-2005 15:11
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1. Thank you Paul.
2. My message with two "long-snout" Syrphidae disappeared from forum sooner than I write in my notebook the name of second fly genus identified by Mr.Kahis
Nikita Vikhrev - Zool Museum of Moscow University
 
Jan Willem
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Posted on 10-07-2005 15:56
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If I had to guess I would also have called the top one a lauxaniid. However I disagree on the second one. In the Clusia flava specimens I have studied I remember seeing dark spots at the back of the head which are missing in you specimen. More important your specimen has post-ventral bristles, which should be absent in Clusia flava. It does remind me of a member of the Scatophagidae, more specifically Norellia spinipes! Maybe Herman de Jong can confirm this.

Jan Willem
 
Paul Beuk
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Posted on 10-07-2005 23:04
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JeeWee wrote:
I disagree on the second one. In the Clusia flava specimens I have studied I remember seeing dark spots at the back of the head which are missing in you specimen. More important your specimen has post-ventral bristles, which should be absent in Clusia flava. It does remind me of a member of the Scatophagidae, more specifically Norellia spinipes! Maybe Herman de Jong can confirm this.

Jan Willem


You got a point. However, as far as I know the Norellia species are active much earlier in the year as the adults have to oviposit on daffodils. Maybe another scathophagid?

And Herman is still no member of this group...
Paul

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Jan Willem
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Posted on 11-07-2005 18:54
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How about Norellisoma spinimana (also Scatophagidae)? In my notes I have collecting data of this species (all identified by Herman de Jong) from April, May, June, July, August, and September. This species also fits better considering the orbital bristles!
The larvae of Norellisoma spinimana are stem-borers in various Rumex species.

Jan Willem
 
Paul Beuk
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Posted on 11-07-2005 19:50
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You see: When we all stick together we will get somewhere! Grin
Paul

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Nikita Vikhrev
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Posted on 11-07-2005 20:23
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Paul and Jan, thank you
Nikita Vikhrev - Zool Museum of Moscow University
 
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