Diptera.info :: Identification queries :: Diptera (adults)
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 free fall ... Acrocera orbiculus
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| jorgemotalmeida |
Posted on 19-07-2009 22:27
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 Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
Hi I have spot this morning in Serra da Estrela the amazing and fantastic Acrocera sp. (maybe an A. sanguinea? ). It was so unusual to spot over 10 acrocerids separated from each other in a radius of about 500 m. I have never found per day MORE than 3 acrocerids, but today I saw 12!!! Some acrocerids attached to my t-shirt and others to my arm. Curious that these flies tried to approach my eyes... it is an unusual behaviour that we can find in Phortica (as it feeds on tear's eyes.) Enjoy.. the fly  .
Edited by jorgemotalmeida on 26-07-2009 17:41 |
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| jorgemotalmeida |
Posted on 19-07-2009 22:35
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
and here more one photo.  to see it better... go to my flickr 
Edited by jorgemotalmeida on 19-07-2009 22:36 |
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| Nosferatumyia |
Posted on 19-07-2009 22:36
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 Member Location: Posts: 3451 Joined: 28.12.07 |
I had same experience in Middle Asia. They were swarming around my head when I was sitting on the edge of a gorge, an I took the by bare hands and put in a killing jar...
Val |
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| jorgemotalmeida |
Posted on 19-07-2009 22:45
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
 yes. And put my feet back... and catch one by one... with this approach. They were separated within some meters... I never expected to see them in a very open land!!  And it was windy. A soft wind, though. I will show photos of the habitat soon.
Edited by jorgemotalmeida on 19-07-2009 22:48 |
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| jorgemotalmeida |
Posted on 19-07-2009 22:58
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
what is odd (?) is the absence of any proboscis.. |
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| pwalter |
Posted on 20-07-2009 10:32
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 Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Hi, congratulations on the photos, what is the size of the fly? |
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| jorgemotalmeida |
Posted on 20-07-2009 10:38
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
pwalter wrote: Hi, congratulations on the photos, what is the size of the fly? Thanks. Very small. It has 3 mm. I have others with 4 mm - 5 mm. But this specimen on the photos has 3 mm |
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| Rui Andrade |
Posted on 20-07-2009 18:39
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 Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
WOW, you are a very lucky guy. |
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| jorgemotalmeida |
Posted on 20-07-2009 23:28
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
You are even more, Andrade. You spotted an alive Astomella hispaniae! And you'll have a new .... soon..
Edited by jorgemotalmeida on 20-07-2009 23:30 |
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| jorgemotalmeida |
Posted on 21-07-2009 00:42
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
this is the place where I spottted Acrocera. Also we can find there Baumhaeuria (rare), Chaetogena, Bombylius discolor, and some cows.  lol the photo is not mine. It was in google images. It is a small one. Just to show the habitat place.
jorgemotalmeida attached the following image:  [147.13Kb] Edited by ChrisR on 22-07-2009 08:53 |
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| Andre |
Posted on 21-07-2009 08:26
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 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
It is known behaviour of Acroceridae... And indeed it is still unknown what they feed on, if ever! Also to find the hosts is still intruiging. Good that you collected some. Maybe Theo Zeegers can be of any help for ID? |
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| jorgemotalmeida |
Posted on 21-07-2009 09:50
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
André I will rear some lycosid spiders. Let's go see if I can get some acrocerids. But it is a hard task! Is there any possibility that they can parasite beetles? (that place has a huge number of coleopterans!) In that zone there is Lycosa fasciiventris, Alopecosa simoni (extremely beautiful spider!), Aelurillus v-insignitus, Thanatus lineatipes... and so on. |
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| Zeegers |
Posted on 21-07-2009 19:43
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Member Location: Soest, NL Posts: 18805 Joined: 21.07.04 |
Yes, looks like A. sanguinea, which is synonym of trigramma (one is male, other female). sanguinea is the valid name. Theo |
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| jorgemotalmeida |
Posted on 21-07-2009 21:26
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
Thanks, Theo. A pity that Isidro's photos are not available. He photographed an Acrocera sanguinea last year. It seems that there is a considerable variability among Acrocera sanguinea. |
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| paqui |
Posted on 21-07-2009 21:44
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Member Location: Valencia (spain) Posts: 816 Joined: 02.09.05 |
Its thorax´s stripes were a fuzz for me before knowing they had "become" the same species. Pictures and keys at Faune de France pointed "undoubtfully" to A. trigramma Congratulations, Jorge, your pics are very good (not just thes 2) |
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| jorgemotalmeida |
Posted on 21-07-2009 22:33
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
Thanks, paqui. I will upload some new photos tomorrow to show the dorsal view. |
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| ChrisR |
Posted on 22-07-2009 08:57
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
It looks like amazing habitat - great for hill-topping flies Before you leave just remember to check your pooter and your tubes to make sure that you don't bring back any cows!
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| jorgemotalmeida |
Posted on 24-07-2009 19:49
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
here are the photos otaken by Isidro Martinez in Zaragoza - Spain. It seems that Acrocera sanguinea can have a high variability in the scutum and in the abdomen. So here the photos to compare with mine.
jorgemotalmeida attached the following image:  [50.15Kb] Edited by jorgemotalmeida on 24-07-2009 20:01 |
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| jorgemotalmeida |
Posted on 24-07-2009 19:49
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
another from Isidro (who kindly granted to me the photos)
jorgemotalmeida attached the following image:  [40.48Kb] |
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| jorgemotalmeida |
Posted on 24-07-2009 19:50
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
another from Isidro
jorgemotalmeida attached the following image:  [54.02Kb] |
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