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 Lucilia sericata
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| Tony T |
Posted on 03-09-2007 00:56
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 Member Location: Posts: 661 Joined: 08.02.07 |
1st September 2007, NB, Canada. Length: 11mm Caught in fish-bait trap, see HERE Keys in North America to Lucilia sericata. Note the 3 postsutural setae on thorax Edited by Tony T on 17-09-2007 16:46 |
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| Susan R Walter |
Posted on 08-09-2007 18:26
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 Member Location: Posts: 1794 Joined: 14.01.06 |
Seems reasonable to me. Only query I would have is how many anterodorsal bristles on the mid-tibia? I can't work it out from even your excellent pics. Jorge - do you want to do a coloring in job on the meron to highlight the meral setae? An important character for separating Calliphoridae from Muscidae especially, and not usually visible in a photo. Susan |
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| Tony T |
Posted on 08-09-2007 18:49
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Member Location: Posts: 661 Joined: 08.02.07 |
Susan R Walter wrote: how many anterodorsal bristles on the mid-tibia? I "dunno"  . Keyed it out using Whitworth 2006.Does this close-up help? 2.45 pm Saturday, 32C and horrendus humidity, too hot to collect. Doesn't someone know that this is Atlantic Canada in September; supposed to be cool  |
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| crex |
Posted on 08-09-2007 19:15
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 Member Location: Posts: 1996 Joined: 22.05.06 |
Tony T wrote: 2.45 pm Saturday, 32C and horrendus humidity, too hot to collect. Doesn't someone know that this is Atlantic Canada in September; supposed to be cool You can have some of our weather. The autumn came way too soon for my taste. A few degrees above 10C and raining today |
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| Susan R Walter |
Posted on 09-09-2007 11:32
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Member Location: Posts: 1794 Joined: 14.01.06 |
OK, so 1 ad on T2 - as it should be for L sericata. I am hopeful that I have cracked this species. Certainly my local ones seem to consistently show the following characters, all of which are pretty easy to see, even in photos: 1. Creamy yellow basicosta (most other species dark). 2. A single anterodorsal seta on the middle tibia. 3. A wide frons, with the frontal vitta being about twice the width of the fronto-orbital plates. 4. 3 post sutural acrostichal setae. 5. Orange palps. 6. Long first flagellomere, at least 4 times as long as wide. The above are listed in more or less the order I would look for them to build up a case for sericata. In addition you could check for conspicuous dusting on the abdomen, which if you get just the right angle often has an obvious median line; and I notice that Whitworth mentions a small ocellular triangle in the females, not reaching half way to the lunule. L sericata is by far my most common local species, and I suspect one of the easiest to key out. The caveat I would add to my observations is that I have been looking almost exclusively at specimens from my local area ie east London and the Thames Estuary. I have not had a chance to look at any manky old museum specimens or any French specimens yet. Susan |
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| jorgemotalmeida |
Posted on 09-09-2007 12:39
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 Member Location: Posts: 9295 Joined: 05.06.06 |
Susan R Walter wrote: Seems reasonable to me. Only query I would have is how many anterodorsal bristles on the mid-tibia? I can't work it out from even your excellent pics. Jorge - do you want to do a coloring in job on the meron to highlight the meral setae? An important character for separating Calliphoridae from Muscidae especially, and not usually visible in a photo. yep. I'm doing that.  But it will take a while.  ok?  |
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| Susan R Walter |
Posted on 10-09-2007 17:34
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Member Location: Posts: 1794 Joined: 14.01.06 |
Great, thanks Jorge - it's really good of you to spend the time.
Susan |
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| jorgemotalmeida |
Posted on 10-09-2007 18:00
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Member Location: Posts: 9295 Joined: 05.06.06 |
in next days I will be very busy. But I will try to do all I propose. Thanks for your support and help. |
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