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Diptera.info :: Miscellaneous :: General queries
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Meral bristles
Stephen
#1 Print Post
Posted on 26-10-2006 01:00
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Location: West Virginia USA
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I see meral bristles are a key character of Tachinidae. What is a meral bristle?
--Stephen

Stephen Cresswell
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Tony Irwin
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Posted on 26-10-2006 01:12
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Meral bristles are the curved row of bristles on the meron (=hypopleuron). The meron is the triangular(ish) plate on the side of the thorax above and between the mid and hind coxae (the very basal segment of the legs). The presence of meral bristles distinguishes the Calliphoridae, Sarcophagidae, Rhinophoridae and Tachinidae (which have them) from the Muscidae, Scathophagidae, Anthomyiidae and Faniidae (which don't). The easiest way to find the meral bristles is to find the posterior thoracic spiracle, then look a little below and in front of it.
Tony
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Robert Nash
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Posted on 26-10-2006 09:19
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See the first couplet in this illustrated key http://www.nku.ed...milies.htm Wink Robert
 
http://www.habitas.org.uk/rnash.html
Stephen
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Posted on 26-10-2006 12:10
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Thank-you, gentlemen, I know what I am looking for now.

I can see that for photo identification, only a small percentage of photos are going to show this character well. On the other hand, I can now at least make the effort to get a good, enlarged, lateral view of the fly's mid-section.
--Stephen

Stephen Cresswell
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Paul Beuk
#5 Print Post
Posted on 26-10-2006 12:38
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The term has been added to the Glossary, but in the future it will be edited in such a way that 'meral' will lead to 'meron' (= 'hypopleuron'Wink. I will add an illustration that will immediatly show the meron with a row of setae.
Paul

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ChrisR
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Posted on 26-10-2006 14:32
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It's always good to know what makes flies fit into their various families - but the nice thing about having experience of our local fauna is that we can usually just know when a fly is a tachinid or muscid etc by sight and not have to look for meral bristles Smile Of course, in all the families mentioned only the Tachinidae or rhinophoridae (I think) have a subscutellum, so that narrows it down a bit too Smile
 
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