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 Tachinidae - Catharosia pygmaea from Serra do Caramulo (1)
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| jorgemotalmeida |
Posted on 29-06-2011 21:50
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Finally I managed to find this genus for the first time. Near a field of Umbelliferae and ferns. June 2011, about 5 mm size. In Caramulinho - Serra do Caramulo. Tachinidae - Catharosia pygmaea. It could be a C. albisquama but it is not because this species is a very small ones and it has the lower calypter not darkened and the petiole of wing cell R5 is much longer than in the C. pygmaea. jorgemotalmeida attached the following image:  [187.29Kb] Edited by jorgemotalmeida on 30-06-2011 01:07 |
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| ChrisR |
Posted on 29-06-2011 22:44
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Nice find!  I am still waiting to find my first here but other people who do more sweeping tend to find them ... they just don't look like tachinids so I probably overlook them.
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 30-06-2011 02:18
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
I swept near the basis of ferns and grass. Also in the same place I saw Eloceria delecta on trunk. This article maybe will shed light in the coloured pattern we can see in the above photo. Stable structural color patterns displayed on transparent insect wings Ekaterina Shevtsova, Christer Hansson, Daniel H. Janzen, and Jostein Kjærandsen http://www.pnas.o...8.full.pdf " (..) wing interference patterns (WIPs) —in the transparent wings of small Hymenoptera and Diptera, patterns that have been largely overlooked by biologists. These extremely thin wings reflect vivid color patterns caused by thin film interference(..)" |
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| ChrisR |
Posted on 30-06-2011 09:51
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Yes, I saw that article a while ago - it is quite an interesting take on interference patterns and their possible role. Insects clearly see in a different way to us and have different priorities so it would be fascinating to do a full study of these patterns to see if they could help us define species boundaries more easily 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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but don't see the image in the post.