Thread subject: Diptera.info :: Chrysotoxum spp, various dates, Hungary

Posted by Xespok on 02-02-2010 18:16
#1

identification of Chysotoxum spp is a lot more challenging than I thought.

Animal nr. 1

Posted by Xespok on 02-02-2010 18:17
#2

Animal nr. 2

Posted by Xespok on 02-02-2010 18:17
#3

Animal nr. 3

Posted by Xespok on 02-02-2010 18:18
#4

Animal nr. 3 (another view)

Posted by Xespok on 02-02-2010 18:19
#5

Animal nr 4.

Posted by Xespok on 02-02-2010 18:20
#6

Animal nr. 4. (another photo)

Posted by Xespok on 02-02-2010 18:22
#7

Animal nr. 5.

Posted by Xespok on 02-02-2010 18:23
#8

Animal nr. 5 (another shot).

Posted by Xespok on 02-02-2010 18:24
#9

Animal nr. 6.

Posted by Xespok on 02-02-2010 18:24
#10

Animal nr. 7.

Posted by Xespok on 02-02-2010 18:25
#11

Animal nr. 8.

Edited by Xespok on 02-02-2010 18:26

Posted by Xespok on 02-02-2010 18:27
#12

Animal nr 9. Poor shot.

Posted by Xespok on 02-02-2010 18:27
#13

Animal nr 10.

Posted by Xespok on 02-02-2010 18:29
#14

Another view of last fly.

Posted by pierred on 02-02-2010 20:31
#15

Gabor,

So much at a time !!

Posted by Gerard Pennards on 02-02-2010 22:45
#16

- 2,3,4,10 C.cautum
- 1,5,7,8,9 likely C. festivum, but C. vernale is possible
- 6 C. arcuatum

You can fill in the male/female part yourself! PfftGrin

Posted by Andre on 02-02-2010 23:50
#17

Where was number 9 going to???

Posted by Xespok on 03-02-2010 07:26
#18

Thx for everyone.

I expected a minimum of 3 species, but I hoped for up to five. I tried to key out many of these, but I usually could narrow down the id to a couple of species. The Chrysotoxum key does not work well with photos.

Nr. 9 was in my opinion clearly going to lay eggs. It was crawling on the ground among fallen leaves and grass in early spring with an exposed ovipositor. This would not be surprising as the larvae are supposed to feed on root aphids based on van Veen.

Posted by PIERRE MILLE on 07-02-2010 15:09
#19

Hello,

Is a real photographic festival ! it is a feast for the eyes !