Thread subject: Diptera.info :: Dolichopus 2->D. latilimbatus

Posted by nielsyese on 19-12-2012 18:40
#1

Another species from June, the Netherlands. All tarsi seem to be simple, lower postocular cilia pale, squamal fringe black.

Edited by nielsyese on 24-12-2012 15:48

Posted by nielsyese on 19-12-2012 18:41
#2

2

Posted by nielsyese on 19-12-2012 18:41
#3

3

Posted by Stefan Naglis on 19-12-2012 19:07
#4

Dolichopus sp. male

Posted by nielsyese on 19-12-2012 19:14
#5

Ok, so I'm right with Dolichopus. I'll try to key it again, but it's hard for me as I hardly ever tried to identify Doli's before.

Posted by nielsyese on 19-12-2012 20:06
#6

I think I know now why I didn't succeed to key this one, because I missed the apicoventral bristle on the front tibia. I'm now convinced it should be Dolichopus notatus. I'll place some extra pictures. First: all tarsi are simple.

Posted by nielsyese on 19-12-2012 20:06
#7

Hind femur

Posted by nielsyese on 19-12-2012 20:07
#8

Apicoventral

Posted by nielsyese on 19-12-2012 20:07
#9

Wing

Posted by nielsyese on 19-12-2012 20:07
#10

Brown face

Posted by Stefan Naglis on 20-12-2012 09:08
#11

I can see only 1 seta on the hind basitarsus. If this is the case then it is Dolichopus litorellus Zett.

Posted by nielsyese on 20-12-2012 17:32
#12

I checked, but it is not the case. You can see only 1 seta, but there are 2. The other one was broken.

Posted by Stefan Naglis on 20-12-2012 18:46
#13

Wing without costal stigma at R1, so it must be Dolichopus calinotus Loew, a species that occurs in the Netherlands.

Posted by nielsyese on 20-12-2012 21:45
#14

Thanks a lot!;) Have a merry x-mas and happy new year:)

Posted by Igor Grichanov on 24-12-2012 15:25
#15

Dolichopus latilimbatus: hypopygium is quite unique.

Posted by nielsyese on 24-12-2012 15:49
#16

Ok, so finally it's something different, thank you!:)

Posted by Stefan Naglis on 25-12-2012 18:31
#17

Igor, D. latilimbatus has a silvery-white face, but this species seems to have a brown face. If this is the case then it must be D. calinotus.

Posted by Igor Grichanov on 27-12-2012 08:39
#18

The specimen has poor condition, probably from water trap or from humid net. We see the ground colour of face with residues of silvery pollination on clypeus.

Posted by nielsyese on 27-12-2012 12:02
#19

The specimen is from 2003 from a malaise trap so is indeed in bad condition, I got similar specimens from the same malaise trap in 2008 and they got all silvery face, so this is very well spotted Igor!

Posted by Stefan Naglis on 27-12-2012 12:34
#20

Dear Niels-Jan, your description "brown face" was misleading. So please provide accurate descriptions in the future. Thanks.

Posted by nielsyese on 27-12-2012 13:00
#21

Hi Stefan, I didn't notice it at first glance myself there was a little silver in the face. I just was looking again after the remark and then I saw especially in the lower part some silver and in the fresh specimens it was all silver. I hadn't noticed that before. I'm sorry about my bad description, but I never tried to ID these Dolichopus before, so I had no comparison. I always try to give accurate description. Thank you for your help!