Diptera.info :: Identification queries :: Diptera (adults)
 Lucilia to ID plz
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| Stephane Lebrun |
Posted on 17-11-2008 22:47
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Le Havre, FRANCE July 26, 2008 In a park. Size : 11 mm. Thanks in advance. View #1 : Stephane Lebrun attached the following image:  [103.05Kb] Stephane. |
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| Stephane Lebrun |
Posted on 17-11-2008 22:48
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
View #2 :
Stephane Lebrun attached the following image:  [104Kb] Stephane. |
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| Stephane Lebrun |
Posted on 17-11-2008 22:49
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Last view :
Stephane Lebrun attached the following image:  [57.74Kb] Edited by Stephane Lebrun on 17-11-2008 22:52 Stephane. |
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| Susan R Walter |
Posted on 18-11-2008 13:50
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Are all hairs on the occiput black? Are there 2-5 setae on the central occipital area below the inner vertical setae? (see discussion in this post: http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=12031). Susan |
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| Stephane Lebrun |
Posted on 18-11-2008 18:52
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
All hairs are black, but there is only one seta below each vti. I have read the thread, if I understand well, you suspect it is L. sericata ? The black basicosta and 2 post ac don't match, no ? Edited by Stephane Lebrun on 18-11-2008 20:54 Stephane. |
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| Susan R Walter |
Posted on 18-11-2008 20:55
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Stéphane – you gave me the answers I was expecting. I didn't expect it to be sericata at all, but I looked at it in a hurry at lunchtime and my initial jizzy impression was richardsii, but the black basicosta didn't fit that either, so I asked about the hairs on the occiput to see if they were right. Then I rather over-egged it by asking about the setae on the occiput behind the occellular triangle, as sericata is the species you are usually wanting to eliminate if you think you have richardsii. Anyway, having looked again, my initial impression was wrong, and it is either illustris or caesar. You will need to check T6 – a complete row of long marginal bristles means illustris, long marginals only on the 'corners' and midpoint for caesar. Illustris also has a slightly bigger distance between the eyes. I'm inclined to suspect illustris from what I can see, but let us know what the T6 result is. Illustris is somewhat more synanthropic than caesar, which is much more a woodland species, but you could get either in a nice park with wooded areas. Susan |
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| Stephane Lebrun |
Posted on 18-11-2008 21:44
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
T6, so I have to soften my fly too, because it is retracted.  I will tell you tomorrow... Stephane. |
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| Nikita Vikhrev |
Posted on 18-11-2008 22:12
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 Member Location: Moscow, Russia Posts: 9460 Joined: 24.05.05 |
Stephane, you switch your attention to Calliphoridae?  Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Stephane Lebrun |
Posted on 18-11-2008 22:27
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Not especially, but this one had been captured, and it would be a pity that I put a label with "Lucilia sp." on it. My favourites are still Muscidae.  Stephane. |
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| Stephane Lebrun |
Posted on 20-11-2008 19:15
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Susan said : You will need to check T6 – a complete row of long marginal bristles means illustris, long marginals only on the 'corners' and midpoint for caesar. I have just checked : complete row of marginal bristle son T6 ! So Lucilia illustris ! Many thanks Susan.
Stephane. |
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| Susan R Walter |
Posted on 20-11-2008 19:37
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Excellent. Since we have a confirmed illustris, can you submit the images to the gallery? All three, or at least 2&3. Thanks for taking the trouble with this fly.
Susan |
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| Stephane Lebrun |
Posted on 20-11-2008 21:12
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
I will do it Susan, thanks again. Stephane. |
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