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 Suilla
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| oceanlis2000 |
Posted on 28-07-2011 10:15
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Member Location: Wales, UK Posts: 570 Joined: 15.06.10 |
Hi Looking at the Suilla Key at http://www.online-keys.net/infusions/keys/keys_view.php I am wondering what is meant by short and long arista? Thank you Dr Elisabeth A. Harris @FloraConsUK |
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| Stephen R |
Posted on 28-07-2011 11:02
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 Member Location: Clitheroe Lancashire UK Posts: 2396 Joined: 12.06.09 |
It's 'long plumose' (feathery with long rays) and 'short plumose' (feathery with short rays). The other possibilities are 'bare' and 'pubescent' (downy - very short rays). |
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| Andrzej |
Posted on 28-07-2011 11:37
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Member Location: Poland Posts: 2363 Joined: 05.01.06 |
You should measure the width of "feather" and compare to the diameter of the basal part of arista, or to the height of first flagellomere !
dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences |
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| Andrzej |
Posted on 28-07-2011 11:44
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Member Location: Poland Posts: 2363 Joined: 05.01.06 |
a pic from Czerny (1927) !
Andrzej attached the following image:  [16.35Kb] dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences |
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| oceanlis2000 |
Posted on 30-07-2011 10:17
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Member Location: Wales, UK Posts: 570 Joined: 15.06.10 |
Thank you both, It seems that the length of the arista is c. the same in both What do you mean by Ray (Stephen) feather (Andrzej), 1 hair on the arista? Short plumose seems to have long hairs on the arista? Dr Elisabeth A. Harris @FloraConsUK |
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