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Diptera.info :: General Diptera forums :: Overviews
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need help for the conservation of hoverflies
PIERRE MILLE
#1 Print Post
Posted on 12-06-2010 20:48
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Location: FRANCE (Conflans Ste Honorine -Yvelines)
Posts: 72
Joined: 12.12.09

Hello every one


Can give me advice for the conservation of hoverflies because I noticed that some have lost their color. The experienced technical advise me how please what after drying ?

Best wishes
PIERRE
http://cyrille.du...orange.fr/
http://www.hoverf...portal.php
 
http://www.atlashymenoptera.net/
Tony Irwin
#2 Print Post
Posted on 13-06-2010 10:30
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Location: Norwich, England
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Hi Pierre
One bit of advice is to keep them alive for 24 hours before killing them - this will allow them to empty their gut, so the contents do not discolour the abdomen.
Tony
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Tony Irwin
 
JariF
#3 Print Post
Posted on 13-06-2010 11:54
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Location: Helsinki, Finland
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I allways put my flies immidiately after pinning to acetone. Five-six hours is enough and after this bath all the colours will stay clear. It works with all kind of coloured Diptera, Hymenoptera ans even Sesiidae. There is no pest problem either because as far I understad there is nothing left to eat.

Jari
 
PIERRE MILLE
#4 Print Post
Posted on 15-06-2010 13:47
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Location: FRANCE (Conflans Ste Honorine -Yvelines)
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Hi Tony,

Thank you for this valuable advice. When I catch hoverflies I immediately put it in a dry box. To avoid concerns of conservation because I do not always have time to prepare I put in the freezer. You make yourself how you prepare them without freezing ?

Pierre
PIERRE
http://cyrille.du...orange.fr/
http://www.hoverf...portal.php
 
http://www.atlashymenoptera.net/
PIERRE MILLE
#5 Print Post
Posted on 15-06-2010 13:49
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Location: FRANCE (Conflans Ste Honorine -Yvelines)
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Hi Jari,

You mean a bath of acetone allows colors to bind to the insect? is that?


PIERRE
http://cyrille.du...orange.fr/
http://www.hoverf...portal.php
 
http://www.atlashymenoptera.net/
JariF
#6 Print Post
Posted on 15-06-2010 14:23
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Location: Helsinki, Finland
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Yes, make a test. Take two common pinned hoverfly; put one in acetone and keep one just like it is. After some time You will see the difference. After acetone bath all colours will stay bright.

Jari
 
Tony Irwin
#7 Print Post
Posted on 16-06-2010 01:16
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Location: Norwich, England
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I also use the freezer to kill flies and store them until I have the time to set them. I've not tried Jari's acetone treatment - I wonder if it would work for Odonata?
Tony
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Tony Irwin
 
PIERRE MILLE
#8 Print Post
Posted on 16-06-2010 09:58
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Location: FRANCE (Conflans Ste Honorine -Yvelines)
Posts: 72
Joined: 12.12.09

Thank you both Tony and Jari.

I'll try the acetone as soon as I get the opportunity. For the conservation of dragonflies I think the excercise was difficult, but I personally know Domanget Jean-Louis (president of French society odonatologie) and he told me he had to leave for a day odonates after capture for the tip, and in this case it keeps better odonates. I feel that this s'appplique to many insects. I am passionate apo´des and wasps and I think the conservation easier Wink.


PIERRE
http://cyrille.du...orange.fr/
http://www.hoverf...portal.php
 
http://www.atlashymenoptera.net/
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23.09.21 15:29
All sorted.

16.09.21 22:24
Sorry put 5 new threads in Asilidae forum instead in Syrphidae forum, can pleas an admin move it to Syrph? THANKS, Norbert

09.09.21 07:48
https://www.jeugdb
ondsuitgeverij.nl/
product/de-vliegen
families-met-drie-
voetkussentjes/

09.09.21 07:47
wing ventation is totally different

03.09.21 12:51
Hi, what's the major difference between dolichopodidae and rhagionidae? Can someone help me? Thanks!

28.06.21 15:24
thx TO eklans

03.06.21 11:11
@Tony Irwin Thank you Tony! I've emailed you there Pfft

02.06.21 22:26
Rob - can you PM me with an e-mail address, and I'll send it over.

02.06.21 13:16
Hello chaps! Does anyone have a copy of: Revision of the willow catkin flies, genus Egle Robineau-Desvoidy (Diptera: Anthomyiidae), in Europe and neighbouring areas ?? I'd be ever so grateful! Rob

31.05.21 14:31
The part that got deleted is "longer, dark median stripe on thorax"

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