Diptera.info :: Identification queries :: Diptera (adults)
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 fat black fly with a yellow head
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| pat_der2003 |
Posted on 18-08-2008 19:11
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Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
Loire-atlantique, france, august 2008 17.
pat_der2003 attached the following image:  [80.66Kb] |
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| pat_der2003 |
Posted on 18-08-2008 19:11
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Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
another view
pat_der2003 attached the following image:  [70.95Kb] |
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| jorgemotalmeida |
Posted on 18-08-2008 19:21
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Tachina grossa 
Edited by jorgemotalmeida on 18-08-2008 19:24 |
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| Gerard Pennards |
Posted on 18-08-2008 19:24
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 Member Location: Amersfoort Posts: 1914 Joined: 07.06.04 |
Amost Jorge, but try Tachina grossa!  Greetings Greetings, Gerard Pennards |
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| jorgemotalmeida |
Posted on 18-08-2008 19:25
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
i know. I mistaked, I realized immediately that was T. grossa, but this site is terribly unstable, so I last some time to fix it. as you can see I fixed before you 
Edited by jorgemotalmeida on 18-08-2008 19:27 |
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| jorgemotalmeida |
Posted on 18-08-2008 19:26
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
i know. I mistaked, I realized immediately that was T. grossa, but this site is terrible unstable, so I last some time to fix it. |
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| Jaakko |
Posted on 18-08-2008 23:51
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 Member Location: Joensuu, Finland Posts: 479 Joined: 04.08.08 |
Here's some babies from the same species. Took 14 days in captivity for the female to start laying eggs! The eggs hatched in few minutes and the minute larvae remain flat on the substrate until they detect some movement, starting franticly wobbling around. A bit like howerfly larvae do. ..Eventually found some use for the dozen Macrothylacia rubi larvae I had in the stock.  Mean, I know. One larva died quite soon, others are still fine
Jaakko attached the following image:  [44.37Kb] |
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| jorgemotalmeida |
Posted on 19-08-2008 00:21
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
which is that substrate?
Edited by jorgemotalmeida on 19-08-2008 20:16 |
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| ChrisR |
Posted on 19-08-2008 11:19
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Great photos - got any more? Let us know about the progress of the larvae too - and take plenty of photos - this kind of thing is hardly ever documented BTW, the tactic of laying eggs that hatch immediately and then wait for a passing larva is fairly common in tachinids. They don't have a hard ovipositor so they have developed other ways to get the host and get inside. Even the species with an apparent ovipositor really only have a "piercing organ" - a hard, stabbing tool which makes a hole into which an egg is laid. |
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| pat_der2003 |
Posted on 19-08-2008 20:11
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Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
many thanks for the ID !! strange things thse larvae and strange habits !! |
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