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Chalcosyrphus sp. => Chalcosyrphus valgus

Picture 2...

Posted by Siegfried Rudolf on 17 August 2022 11:53:30
3 matches found in post subject, 0 matches found in post message

Chalcosyrphus sp. => Chalcosyrphus valgus

Hello, everyone,

I photographed this hoverfly from the genus Chalcosyrphus on 08/07/22 in the Bla...

Posted by Siegfried Rudolf on 17 August 2022 11:52:55
3 matches found in post subject, 1 match found in post message

Chalcosyrphus valgus

Thank you very much for ID.
It's nice to find 2 Chalcosyrphus species on the same aspen.

Be...

Posted by Marion Friedrich on 30 May 2022 23:02:32
2 matches found in post subject, 1 match found in post message

Chalcosyrphus valgus

Interesting - differences in tergite length are not mentioned in the keys I know.
Here is a nice p...

Posted by Sundew on 30 May 2022 20:12:46
2 matches found in post subject, 1 match found in post message

Chalcosyrphus valgus

To confirm this ID, consider that Ch. valgus should have a long 4th tergite, the abdomen should look...

Posted by treebeard on 30 May 2022 19:33:54
2 matches found in post subject, 2 matches found in post message

Chalcosyrphus valgus

another picture...

Posted by Marion Friedrich on 30 May 2022 18:23:47
2 matches found in post subject, 0 matches found in post message

Chalcosyrphus valgus

Difficult. I attach 2 more pictures.
Unfortunately the tip of the hind tibiae is not visible in any...

Posted by Marion Friedrich on 30 May 2022 18:22:10
2 matches found in post subject, 4 matches found in post message

Chalcosyrphus valgus

Hi Sundew,
thank you very much for the detailed answer. Your paper is very welcome and would be hel...

Posted by Marion Friedrich on 29 May 2022 08:36:25
2 matches found in post subject, 0 matches found in post message

Chalcosyrphus valgus

It is difficult to say, we need to see the ventral tip of the hind tibia. I add a character comparis...

Posted by Sundew on 29 May 2022 02:11:52
2 matches found in post subject, 1 match found in post message

Chalcosyrphus valgus

2nd picture...

Posted by Marion Friedrich on 27 May 2022 12:18:54
2 matches found in post subject, 0 matches found in post message

Date and time
15 May 2024 14:22
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07.03.24 00:01
Some flies preserved in ethanol and then pinned often get the eyes sunken, how can this be avoided? Best answer: I usually keep alcohol-collected material in alcohol

17.08.23 15:23
Aneomochtherus

17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

17.08.23 11:37
pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

16.08.23 08:37
Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

23.02.23 21:29
Has anyone used the Leica DM500, any comments.

27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

19.12.22 11:33
Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

09.10.22 17:07
Yes, dipterologists from far abroad, please buy your copy at veldshop. Stamps will be expensive, but he, the book is unreasonably cheap Smile

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