Diptera.info :: Identification queries :: Diptera (adults)
 Phaonia!? but which species? #2
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| Ratatoskr |
Posted on 24-02-2010 11:29
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Member Location: Sweden Posts: 47 Joined: 23.02.10 |
Hi, Here comes the second Phaonia. I've attached a photo of the "fly" I'm wondering about. I'm thinking this is a Phaonia tuguriorum, also female. or is this the same species as the previous one? Photo taken in South of Sweden August 11 2008. Eager to hear how far off I am on this one too  Again, how do I see if it's a male or female? Is it by the spacing between the eyes? Ratatoskr attached the following image:  [106.67Kb] Edited by Ratatoskr on 24-02-2010 19:01 |
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| Stephane Lebrun |
Posted on 24-02-2010 18:12
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
This is Phaonia angelicae, and previous one can be the same.
Stephane. |
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| Ratatoskr |
Posted on 25-02-2010 20:14
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Member Location: Sweden Posts: 47 Joined: 23.02.10 |
Thank you Stephane. I've looked around, especially on http://www.bioimages.org.uk/html/t125802.htm with it's 40 top grade photos, and it sure looks like it even though that site has a question mark on it's identification. Any second opinion on this? or else I'll go for that. Stephane seems sure. What about my second one? the space in between the eyes seems whiter, but could just be the light. http://www.diptera.info/forum/viewthread.php?thread_id=28251 As far as I've seen by studying photos of the Phaonia it does seem to me like I'm correct on males vs females trade. Any objections to that assessment? Belief is not an idea that the mind possesses but an idea that possesses the mind. |
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| Stephane Lebrun |
Posted on 25-02-2010 20:32
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Hello, the one in link (on biomimage.org.uk) is a male Phaonia tuguriorum. This latter has dark crossveins, and a red-tipped scutellum. Phaonia angelicae hasn't these characters. Scutelum may appear yellow, but it is by its heavy dusting, not by a background colour. Furthermore, on your picture, we can see the two rows of posterior setae on the mid tibia (pd and pv) which is a determinant character of P. angelicae. And your fly is a female indeed, because ot the eyes which are more distant on the frons. Edited by Stephane Lebrun on 25-02-2010 20:43 Stephane. |
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| Ratatoskr |
Posted on 25-02-2010 22:58
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Member Location: Sweden Posts: 47 Joined: 23.02.10 |
I will never even second guess you again Stephane. I'm in awe of your knowledge on this. I barely know anything at all about insect anatomy and it's taken me 45 minutes to find the definition on all those "alien" words you used  I'm thankful for you using correct anatomical terms as it teaches me a lot about a flies anatomy and I love learning more about every species I encounter and take photos of. This site was enormously helpful to me and I think that it may be helpful for others with as little knowledge as me too, which is why I want to post it here. I hope no one minds. http://www.ento.csiro.au/biology/fly/flyGlossary.html Thank you so much Stephane ! Belief is not an idea that the mind possesses but an idea that possesses the mind. |
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