Diptera.info :: Identification queries :: Diptera (adults)
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 Loewia sp.?
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| ChrisR |
Posted on 29-05-2011 14:57
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
I've been having some real problems with some specimens from Armenia & Russia that, to me, look generally like Loewia but they are much larger (9-11mm) than the Loewia that I have seen before and I just can't seem to make them work in the keys (Palearctic & Central European). Can anyone work out what they are? Armenian (Aragatsotn):   Russian (Krasnodar):  
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Jaakko |
Posted on 29-05-2011 21:30
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 Member Location: Joensuu, Finland Posts: 479 Joined: 04.08.08 |
Looks like Loewia, alright. Some are quite big. Are you using the Mesnil (Lindner) for the Palearctic? |
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| ChrisR |
Posted on 29-05-2011 21:32
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Well, I have tried Mesnil (assuming it was Loewia) - I think I got to Loewia brevifrons ... but it felt like I got there more by luck than good judgement - they never seem to reach Loewia in the generic keys 
Edited by ChrisR on 29-05-2011 21:34 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 30-05-2011 19:45
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Member Location: Soest, NL Posts: 19310 Joined: 21.07.04 |
Loewia brevifrons is large and different from 'typical' Loewia. Might be correct. Did you note the special arrangment of the marginal bristles on the scutellum Should be distinctive. Theo |
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| ChrisR |
Posted on 30-05-2011 20:03
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
The scutellars are fairly spectacular actually: - apicals crossed and smallest/finest of the pairs - straight sub-apicals - slightly longer and stronger than apicals - 2-3 pairs of laterals - similar in size to the sub-apicals (often uneven numbers on each side) - 1 basal pair about as long as the apicals (so finer than the laterals) Does that sound convincing for Loewia brevifrons?  Is Loewia brevifrons fairly uncommon or something you'd expect from the south-east? It isn't something I have any information on. Edited by ChrisR on 30-05-2011 20:12 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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