Diptera.info :: Identification queries :: Diptera (adults)
 Heteromyza rotundicornis / commixta query
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| John Bratton |
Posted on 23-02-2010 15:39
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Member Location: Menai Bridge, North Wales, UK Posts: 670 Joined: 17.10.06 |
Collin's 1943 key says you can separate females of these species by the position of the front orbital bristles: A line connecting front orbitals nearer to the front of the frons than to the front ocellus - rotundicornis Zett. A line connecting front orbitals not nearer to the front of the frons than to the front ocellus - commixta Collin Does this work, please? As the front of the frons is concave, did he mean the front in the mid-line or at the sides? In commixta, is the front orbital equidistant between frons and front ocellus, or nearer the ocellus? Is there any other way of separating them? I find females more often than males. Thanks in anticipation, John Bratton |
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| rvanderweele |
Posted on 28-09-2010 21:08
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Member Location: Leiden, the Netherlands Posts: 1988 Joined: 01.11.06 |
Interesting question from almost a year ago. According to Laszlo Papp the status of commixta is uncertain. He mentions that possibly commixta is a jun. syn. of rotundicornis. Does anybody knows what we know about this situation now?
ruud van der weele rvanderweele@gmail.com |
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| John Bratton |
Posted on 05-10-2011 10:56
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Member Location: Menai Bridge, North Wales, UK Posts: 670 Joined: 17.10.06 |
I've even more belatedly just seen your reply. Thanks for this. As you say, it would be good to know the current situation. Is commixta Collin recorded outside of Britain? |
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| Paul Beuk |
Posted on 05-10-2011 15:38
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Yes. See the link to the distribution on http://www.faunaeur.org/full_results.php?id=61778.
Paul - - - - Paul Beuk on https://diptera.info |
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