Diptera.info :: Family forums :: Syrphidae
 Scaeva selenitica wing question
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| romunov |
Posted on 19-03-2009 08:22
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Member Location: Ljubljana, Slovenia Posts: 52 Joined: 13.02.09 |
Are straight or nearly so R4+5 veins common in Scaeva selenitica? My specimen is possibly S. selenitica (this is one of three early species found locally by M. de Groot who suggested the ID) yet when I try to confirm the ID by key, I overshoot it when I compare the vein, landing in Melangyna. Also, when I try to ID the species (on page 194), I can't see the mentioned distinctly larger anterodorsal facets (designated for S. mecogramma males. Any comments appreciated. |
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| romunov |
Posted on 20-03-2009 22:45
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Member Location: Ljubljana, Slovenia Posts: 52 Joined: 13.02.09 |
I believe my fly may be actually Melanogyna (perhaps compositarum), which explains the R4+5 shape (or the other way around  ). |
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| Andre |
Posted on 22-03-2009 20:58
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 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
Scaeva is a lot larger than Melangyna and much more robust. So if you have a generally 'slender' specimen, it's probably not Scaeva. Compare with pictures in the Syrphidae Gallery of diptera.info... |
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| romunov |
Posted on 23-03-2009 00:01
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Member Location: Ljubljana, Slovenia Posts: 52 Joined: 13.02.09 |
Now that you've mentioned it, I did see S. selenitica near the faculty the other day, and it did appear a bit larger. However, I'm extremely fresh at this and size and shades of colors aren't that apparent yet. With time, my eye will develop for the "jizz". |
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