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Cecidomyiidae bright yellow! (subfamily Lestremiinae?)
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blowave |
Posted on 15-03-2011 21:31
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Hi! This was inside on 5th September 2010, near Lincoln UK. Size ~3mm. I wondered if anyone had a clue of what it is due to the colour! 1 pic + 1 crop Janet blowave attached the following image: [78.75Kb] Edited by blowave on 16-03-2011 22:19 http://cubits.org... |
blowave |
Posted on 15-03-2011 21:32
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
crop
blowave attached the following image: [78.38Kb] http://cubits.org... |
Sara21392 |
Posted on 15-03-2011 21:34
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Member Location: Posts: 1445 Joined: 07.11.10 |
Wow! Very nice!
Sincerely yours Sara |
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blowave |
Posted on 16-03-2011 22:17
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Yes Sara, it is exceptionally nice! I have been searching on Bug-guide, John Carr has mentioned that: Gall midges with five tarsal segments, first longer than second are Lestremiinae. I think the first tarsal segment is longer than the second, and it has 5 segments! blowave attached the following image: [71.87Kb] http://cubits.org... |
Sara21392 |
Posted on 16-03-2011 23:38
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Member Location: Posts: 1445 Joined: 07.11.10 |
Janet! I can't see 4th and 5th segments tarsi? (Could you please show me?) Are they last segments?
Sincerely yours Sara |
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blowave |
Posted on 16-03-2011 23:55
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Sara21392 wrote: Janet! I can't see 4th and 5th segments tarsi? (Could you please show me?) Are they last segments? A big HMMMMM! I'm not sure I can see them now! I thought I saw a joint where I have put a funny ? next to the line, but its not obvious and I can't see it on the first tarsus. I lightened it a little to see better.. blowave attached the following image: [54.94Kb] Edited by blowave on 16-03-2011 23:56 http://cubits.org... |
Sara21392 |
Posted on 17-03-2011 00:31
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Member Location: Posts: 1445 Joined: 07.11.10 |
Well, I think I can see it on first leg (blue line!!) but I couldn't see it on second leg! What do you think??
Sara21392 attached the following image: [39.15Kb] Edited by Sara21392 on 17-03-2011 00:35 Sincerely yours Sara |
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Stephen R |
Posted on 17-03-2011 00:35
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Member Location: Clitheroe Lancashire UK Posts: 2396 Joined: 12.06.09 |
My old eyes can only see 4 segments on both. |
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Sara21392 |
Posted on 17-03-2011 00:42
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Member Location: Posts: 1445 Joined: 07.11.10 |
Stephen! maybe I'm wrong!!! I'm not sure, and picture is not clearly!? I think better again see under microscope...! Sincerely yours Sara |
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blowave |
Posted on 17-03-2011 02:11
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
I think I can see it on the first leg Sara! I have edited the pic a little to brighten it, and sharpened more. Where I have put the two black lines I think there is a dark line which looks like a joint, but there also looks to be a small notch just below where I have put the thin black line. The original looks a little better than the uploaded pic, I think! blowave attached the following image: [48.85Kb] Edited by blowave on 17-03-2011 02:12 http://cubits.org... |
John Carr |
Posted on 17-03-2011 03:00
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Member Location: Massachusetts, USA Posts: 10130 Joined: 22.10.10 |
The "?" does not point to a segment division. The division between first and second segment is very faint. It is about twice the diameter of the tarsus from its base. |
blowave |
Posted on 17-03-2011 03:23
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
John Carr wrote: The "?" does not point to a segment division. The division between first and second segment is very faint. It is about twice the diameter of the tarsus from its base. If I got that right John, I have put a tick next to the black line where I think the division is.. so this does mean there are 5 segments? blowave attached the following image: [40.21Kb] http://cubits.org... |
John Carr |
Posted on 17-03-2011 03:34
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Member Location: Massachusetts, USA Posts: 10130 Joined: 22.10.10 |
That's about where I see the division. The segments are fused together and the exact location of the joint may not be clear. |
blowave |
Posted on 17-03-2011 04:32
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
So we are looking at a gall midge with a very short 1st and comparitively long 2nd tarsal segment. I'm relying on your knowledge John! Does this indicate a subfamily? http://cubits.org... |
Paul Beuk |
Posted on 17-03-2011 09:06
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Super Administrator Location: Netherlands Posts: 19328 Joined: 11.05.04 |
I think it only excludes Lestremiinae.
Paul - - - - Paul Beuk on https://diptera.info |
Sara21392 |
Posted on 17-03-2011 09:30
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Member Location: Posts: 1445 Joined: 07.11.10 |
It means, first seg. longer than second?? Yes?
Sincerely yours Sara |
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Paul Beuk |
Posted on 17-03-2011 10:48
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Super Administrator Location: Netherlands Posts: 19328 Joined: 11.05.04 |
In Lestremiinae the first segment is not extremely shortened, in other cecidomyiids the second is much longer than the first.
Paul - - - - Paul Beuk on https://diptera.info |
Sara21392 |
Posted on 17-03-2011 11:05
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Member Location: Posts: 1445 Joined: 07.11.10 |
Thanks Paul!
Sincerely yours Sara |
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Gunnar M Kvifte |
Posted on 17-03-2011 11:23
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Member Location: Kassel, Germany Posts: 436 Joined: 18.08.09 |
Lestremiinae also has ocelli present, which your specimen does not seem to have. |
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blowave |
Posted on 19-03-2011 15:59
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Thank you all for the extra information! I have checked the wing venation on drawwing, there are subfamilies given. The one which mine looks to match suggests subfamily Cecidomyiidae within the family Cecidomyiidae. Is there such a subfamily? It's not listed for here! http://www.drawwi...idomyiidae We only have three subfamilies listed.. http://www.dipter...hp?id=2731 I altered the pic of the wings so the venation can be seen better.. blowave attached the following image: [124.43Kb] http://cubits.org... |
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