 Greenish muscid (?)
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| Jan Zwaaneveld |
Posted on 11-03-2007 00:09
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Member Location: Posts: 721 Joined: 20.02.06 |
Today I found these two flies, presumably of the same species, in a small piece of wooded area at Leerdam, Netherlands. Length appr. 10 mm. At first I thought it was Neomyia or Lucilia, but they differed in some respects. These flies were not shiny green, but duller green. They also had faint stripes on the scutum. Vein M bent distinctly, but not very sharply. No green orbitals like in Neomyia. My impression is they are Muscid flies rather than Calliphoridae. Could anybody help with the identification? It would be greatly appreciated! fly 1, pic 1 http://slamenietd...web-log.nl |
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| Jan Zwaaneveld |
Posted on 11-03-2007 00:10
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Member Location: Posts: 721 Joined: 20.02.06 |
fly 1, pic 2
http://slamenietd...web-log.nl |
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| Jan Zwaaneveld |
Posted on 11-03-2007 00:10
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Member Location: Posts: 721 Joined: 20.02.06 |
fly 2, pic 1
http://slamenietd...web-log.nl |
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| Jan Zwaaneveld |
Posted on 11-03-2007 00:11
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Member Location: Posts: 721 Joined: 20.02.06 |
fly 2, pic 2
http://slamenietd...web-log.nl |
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| Nikita Vikhrev |
Posted on 11-03-2007 00:15
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 Member Location: Posts: 9193 Joined: 24.05.05 |
It is female of Dasyphora sp., Muscidae. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Jan Zwaaneveld |
Posted on 11-03-2007 01:15
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Member Location: Posts: 721 Joined: 20.02.06 |
Thanks very much, Nikita! There is only one species of Dasyphora on the Dutch list: D. albofasciata. So I guess I can safely assume that this is D. albofasciata. http://slamenietd...web-log.nl |
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| Susan R Walter |
Posted on 11-03-2007 13:28
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 Member Location: Posts: 1794 Joined: 14.01.06 |
Jan I think you had better check out Nikita's picture of a female D albofasciata in the gallery - I think this might be the one Dasyphora sp your specimen is *not*. Susan |
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| Jan Zwaaneveld |
Posted on 11-03-2007 14:04
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Member Location: Posts: 721 Joined: 20.02.06 |
Hmm, you have a very good point there, Susan. Nikita's female is so different I completely overlooked it. That raises the question which Dasyphora 'my fly' is, if this is indeed Dasyphora  Thank you for pointing this out! http://slamenietd...web-log.nl |
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| Nikita Vikhrev |
Posted on 11-03-2007 14:23
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Member Location: Posts: 9193 Joined: 24.05.05 |
Jan, your Dasyphora looks too greenish for D.albofasciata. But it may strongly depend on the light conditions. What is more important - I can't find any presutural ac (first image is good for that aime). It is why I stoped at Dasyphora sp. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Jan Zwaaneveld |
Posted on 11-03-2007 16:43
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Member Location: Posts: 721 Joined: 20.02.06 |
O.k., thank you for explaining Nikita. In that case I'll too stop at Dasyphora sp. 
http://slamenietd...web-log.nl |
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| Stephane Lebrun |
Posted on 11-03-2007 22:59
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 Member Location: Posts: 8248 Joined: 03.03.07 |
Hello, Nikita, may I ask you some questions ? When you say Dasyphora, is it in a wide sense, thus including Eudasyphora, or you consider it's Dasyphora ss. str. ? In the last case, why it couldn't be Eudasyphora ? All these questions because in my book, Dasyphora and Eudasyphora are separated on theses criteria : Dasyphora -> abdomen with shifting black and whitish dusted pattern... Eudasyphora -> abdomen polished without black and whitish dusted pattern... Seeing the abdomen, I think these pictures could fit more to Eudasyphora, no ? Thanks in advance to your advices, and sorry for these questions and my poor english. Regards. Stephane. |
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| Nikita Vikhrev |
Posted on 12-03-2007 12:30
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Member Location: Posts: 9193 Joined: 24.05.05 |
Hi Stephane. I meaned Dasyphora ss. str. You can compare in Gallery D. albofasciata and E. cyanicolor, I think, that difference is clear. Note that D. albofasciata is the less greenish Dasyphora and the most "black and whitish dusted patterned" out of Dasyphora. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Jan Zwaaneveld |
Posted on 12-03-2007 20:02
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Member Location: Posts: 721 Joined: 20.02.06 |
I found another one today, also Dasyphore I assume, but distinctly greyer on the scutum, more contrast between scutum and greenish abdomen, and the pattern of stripes on the scutum looks different with a prominent stripe over the center. Could someone confirm this is also Dasyphora, or is it something else? http://slamenietd...web-log.nl |
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| Jan Zwaaneveld |
Posted on 12-03-2007 20:03
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Member Location: Posts: 721 Joined: 20.02.06 |
pic 2
http://slamenietd...web-log.nl |
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| Jan Zwaaneveld |
Posted on 12-03-2007 20:03
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Member Location: Posts: 721 Joined: 20.02.06 |
pic 3
http://slamenietd...web-log.nl |
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| Nikita Vikhrev |
Posted on 12-03-2007 20:36
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Member Location: Posts: 9193 Joined: 24.05.05 |
No, Jan, it is Calliphoridae. It may be Bellardia sp. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Stephane Lebrun |
Posted on 12-03-2007 20:39
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Member Location: Posts: 8248 Joined: 03.03.07 |
Nikita, many thanks for your explanations, I begin to see now. My key would have be more explicit if it had said "abdomen dull or dusted, not very shiny" rather than "with shifting black and whitish pattern" that is not always true or evident to see on all species. Thanks again, Stephane. Stephane. |
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| Jan Zwaaneveld |
Posted on 12-03-2007 21:41
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Member Location: Posts: 721 Joined: 20.02.06 |
Thank you once again, Nikita. I should have thought of Calliphoridae, but I didn't. The good news is I'm learning more about flies every day, thanks to all of you on diptera.info 
http://slamenietd...web-log.nl |
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