Thread subject: Diptera.info :: Machimus species for id

Posted by Klaas on 13-12-2008 20:46
#1

20 July 2008, The Netherlands, Havelte.
On small path, in the sun.

I see a lot of M. cing.ulatus, but this one was larger (20-22 mm). Or is it perhaps an other genus?

Klaas:)

Posted by Danny Wolff on 14-12-2008 14:18
#2

Hi Klaas,

I think it is a Machimus arthriticus. Do you have more pictures of this specimen?

Greetings, Danny Wolff

Posted by Klaas on 14-12-2008 22:06
#3

Hi Danny,

I have 4 pictures, but more or less from the same point of view.
What info do you need for an id?

Klaas

Posted by Klaas on 17-12-2008 21:58
#4

Danny Wolff wrote:
Hi Klaas,

I think it is a Machimus arthriticus. Do you have more pictures of this specimen?

Greetings, Danny Wolff


I'll add some details which might help us further

Klaas

The head

Posted by Klaas on 17-12-2008 21:59
#5

Tip of abdomen

Posted by Klaas on 17-12-2008 22:05
#6

Thorax
I think some spines of scutelum broke off.
(Probably there have been 6 spines, 4 pale ones in the middle and a smaller one at each side. Or it is just 4 spines)

Edited by Klaas on 17-12-2008 23:51

Posted by Danny Wolff on 18-12-2008 07:56
#7

Hi Klaas,

yes, now it is clear that it is M. arthriticus. The very brown coloured wings and wing veins confused me a little bit. But the short spine-like hairs on the humeri ("shoulders"; other Machimus have fine hairs) and the spines on the underside of the front femora together with the colour of the legs are good characters.

Greetings, Danny Wolff