Diptera.info :: Family forums :: Syrphidae
 Chrysotoxum cautum or arcuatum?
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| nick upton |
Posted on 19-03-2010 14:08
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Member Location: Wiltshire, UK Posts: 828 Joined: 12.03.10 |
I think this is one or the other, but can anyone tell me which one and how can I tell the difference in future? Photographed 27.6.09 feeding on Heracleum sphondylium in Wiltshire Southwest UK Nick Upton - generalist naturalist and photographer nick upton attached the following image:  [135.38Kb] |
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| tim worfolk |
Posted on 19-03-2010 15:41
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 Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
I'd say cautum, 3rd antennal seg. not long enough for arcuatum, and tergite pattern also matches cautum best. There are another 3 Chrysotoxum spp. which come close but that would be getting complicated - great isn't it? Tim |
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| nick upton |
Posted on 19-03-2010 19:24
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Member Location: Wiltshire, UK Posts: 828 Joined: 12.03.10 |
OK thanks Tim, yet again. I'd made it cautum too, by comparison with other photos but -it seems- by looking at all the "wrong" characters. I'll stick with that unless any one else is sure its one of the many lookalikes. Nick |
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| Andre |
Posted on 22-03-2010 20:16
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 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
cautum female indeed, very good. |
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| nick upton |
Posted on 22-03-2010 21:40
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Member Location: Wiltshire, UK Posts: 828 Joined: 12.03.10 |
Ok, many thanks Andre for this confirmation. Nick |
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