Thread subject: Diptera.info :: Meromyza sp. SW Sweden 23 August 2017

Posted by Johane on 05-01-2018 12:41
#1

I have tried to identify a Meromyza species using Fauna Ent. Scand. In the key I come to a step where I need to look at the postgonites.
My question is: Is it the black things I have marked with red that are the postgonites?

Posted by Johane on 10-01-2018 15:04
#2

Black hairs on gena and black palpi

Posted by Johane on 10-01-2018 15:04
#3

thorax dorsal view

Posted by Johane on 10-01-2018 15:05
#4

head dorsal view

Edited by Johane on 10-01-2018 15:05

Posted by Johane on 10-01-2018 15:07
#5

5

Posted by Johane on 10-01-2018 15:07
#6

abdomen

Posted by Johane on 10-01-2018 15:08
#7

7

Posted by Paul Beuk on 11-01-2018 12:23
#8

Genitalia seem closest to rohdendorfi (the shape of the postgonites as you indicate in the first image), but the hind femro are not nearly as swollen enough as mentioned in the key. My non-expert opinion...

Posted by Johane on 12-01-2018 17:04
#9

Thanks Paul! :)
I was thinking about triangulina.

Posted by Paul Beuk on 16-01-2018 15:13
#10

Well, if you can confirm that the tips of the palpi are darkened that might be possible, but I thought I saw all yellow palpi. If black and using Nartshuk & Fedoseeva (2011), triangulina would fit. Fauna Ent, Scand mentions the lateral margins of the frontal trangle to be darkened, but that eludes me in your pictures. However, the genae do have scattered hairs.

Edited by Paul Beuk on 16-01-2018 15:49

Posted by Johane on 21-01-2018 20:31
#11

Here's a photo were the palpi are better visible.