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 Another strange neotropical tachinid
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| ChrisR |
Posted on 30-05-2007 22:31
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
This is an odd one from French Guyana. Size about 10mm in the body, plumose arista and looks to all the world like a brown callaphorid ... but it has a subscutellum. I'm not even sure it is a tachinid but with that subscutellum I can't think what else it could be.
ChrisR attached the following image:  [75.45Kb] |
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| ChrisR |
Posted on 30-05-2007 22:31
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
face...
ChrisR attached the following image:  [105.18Kb] |
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| ChrisR |
Posted on 30-05-2007 22:33
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
subscutellum...
ChrisR attached the following image:  [77.3Kb] |
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| jorgemotalmeida |
Posted on 30-05-2007 22:54
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 Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
according Oosterbroek in page 98 and 102 calliphoridae can have subscutellum??? Genus: Morinia, Melanomya and Angioneura... so beware.  |
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| ChrisR |
Posted on 30-05-2007 23:02
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Begs the question - if hypopleural bristles and a full subscutellum isn't enough to make a tachinid - then what *does* make a tachinid?  |
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| jorgemotalmeida |
Posted on 30-05-2007 23:10
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
in that case, the things are much different. I was reading with more care and they say that subscutellum of calliphorid is flat and not swollen. |
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| ChrisR |
Posted on 30-05-2007 23:25
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
ahhhhhh, makes better sense  |
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| Zeegers |
Posted on 31-05-2007 07:36
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Member Location: Soest, NL Posts: 18794 Joined: 21.07.04 |
As far as I know, hypopleural bristles + swollen postscutellum imply Tachinidae or Oestridae. So, Tachinidae in this case. Beware, however, that the reverse is not true (some Tachinidae have a flat postscutellum) Theo |
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| ChrisR |
Posted on 31-05-2007 08:54
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
That's my understanding too then, I am glad I was right It's just genera like Lithophasia that make it all hard for us! This particular individual is just quite interesting because it looks so much like a brown callaphorid and the plumose arista is interesting because that's a feature we in Europe associate with dexiines but this look very different from any dexiine I have ever seen, so I am guessing it is part of a subfamily that we don't get here. |
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| Zeegers |
Posted on 31-05-2007 18:24
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Member Location: Soest, NL Posts: 18794 Joined: 21.07.04 |
Well, it's so different from Dexia, in my opinion. Forget about the colours and look at the morphology. Colours don't matter, at this level Theo |
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