Diptera.info :: Identification queries :: Other insects, spiders, etc.
 Neuroptera- Sialis lutaria ?
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| bonitin |
Posted on 31-12-2009 23:06
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 Member Location: Gent, Belgium Posts: 348 Joined: 11.10.07 |
Hi,  I was wondering if this is the Common Alderfly Sialis lutaria ? I have two of these in my folders, but this one somehow looks different; Its head and neck look less hairy and the wings look shorter, darker too. I also see a kind of brownish colar around its neck just under the head, perhaps it's a just a gender difference.. Any help very much appreciated!  |
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| jorgemotalmeida |
Posted on 01-01-2010 12:31
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
this is not Neuroptera. It belongs to the Megaloptera order, now. The Megaloptera were formerly considered part of a group then called Neuroptera, together with lacewings and snakeflies. It is Sialis. For species I do not know. Edited by jorgemotalmeida on 01-01-2010 12:46 |
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| bonitin |
Posted on 01-01-2010 12:47
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Member Location: Gent, Belgium Posts: 348 Joined: 11.10.07 |
Thanks Jorge for that info! Still wondering though if this is the common Alder Fly.. |
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| jorgen |
Posted on 02-01-2010 12:42
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Member Location: Belgium Posts: 75 Joined: 25.07.05 |
The other Belgian species are very rare and associated with clean streams. I thought that they can only be distinguished by examination of the genitals. So, probably it is Sialis lutaria, but Sialis cf. lutaria is in fact beter. |
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| bonitin |
Posted on 03-01-2010 01:11
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Member Location: Gent, Belgium Posts: 348 Joined: 11.10.07 |
Thanks Jorgen! I see you're from Belgium too! I found it in the local Nature Reserve, the Bourgoyen in Gent. No clean streams there so I suppose it must be the Common Alderfly Sialis lutaria then.. Edited by bonitin on 03-01-2010 01:12 |
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