Diptera.info :: Identification queries :: Diptera (adults)
 Thaumatomyia notata?
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| Juergen Peters |
Posted on 09-09-2006 16:48
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 Member Location: northwest Germany Posts: 14250 Joined: 11.09.04 |
Hello! I still don't know, how to distinguish between Thaumatomyia notata and genus Chlorops on a photo. So, did I find a Thaumatomyia notata or a Chlorops here yesterday in our garden (Ostwestfalen/Germany)? Length about 2,5-3 mm. Thanks! Juergen Peters attached the following image:  [49.42Kb] Edited by Juergen Peters on 09-09-2006 16:48 Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Tony Irwin |
Posted on 09-09-2006 21:06
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 Member Location: Norwich, England Posts: 7306 Joined: 19.11.04 |
Hi J?rgen Thaumatomyia have a flat-topped scutellum with a clear margin and closely spaced apical bristles. Chlorops have a rounded scutellum. Although it's not very clear in your photo, I would say that these are Thaumatomyia. Also, in my (limited) experience, Chlorops usually are found near their hostplants (grasses). Thaumatomyia, which feed on root aphids, are more likely to be found on general vegetation, especially in the autumn when they are preparing for hibernation. Tony ---------- Tony Irwin |
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| Juergen Peters |
Posted on 09-09-2006 22:40
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Member Location: northwest Germany Posts: 14250 Joined: 11.09.04 |
Hello, Tony! Tony Irwin wrote: Also, in my (limited) experience, Chlorops usually are found near their hostplants (grasses). Thaumatomyia, which feed on root aphids, are more likely to be found on general vegetation Thanks! Then the flies I often find on umbelliferous flowers will also mostly be Thaumatomyia?! Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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