Thread subject: Diptera.info :: Syrphid from 20.04.14 --> Syrphus cf. torvus

Posted by Juergen Peters on 21-04-2014 22:53
#1
Hello,

sorry, I have only this picture, taken from a distance. I first thought it was Syrphus sp. (flying also yesterday), but the abdomen markings make me think of Epistrophe grossulariae (?). Size about 8 mm, near forest (northwest Germany).
Edited by Juergen Peters on 28-04-2014 14:23

Posted by Juergen Peters on 28-04-2014 00:22
#2
Hello,

Juergen Peters wrote:
the abdomen markings make me think of Epistrophe grossulariae

can at least the genus be confirmed?

Posted by Fred Fly on 28-04-2014 08:26
#3
Moin Jürgen,
it is with no doubt a female of Syrphus. In the field my predetermination would be torvus based on the broad black bands. In Northern Germany torvus was the most frequent Syrphus flying this April. Mid of April is a little bit early for Epistrophe grossulariae.
Regards
Piet
Edited by Fred Fly on 28-04-2014 08:27

Posted by Juergen Peters on 28-04-2014 14:23
#4
Hello Piet,

Piet Nord wrote:
it is with no doubt a female of Syrphus.

thank you!

In Northern Germany torvus was the most frequent Syrphus flying this April.

I also observed in former years, that torvus (IDed by an expert from detailed photos of the eyes) was numerous here in spring.

Posted by Juergen Peters on 07-05-2014 19:54
#5
Hi,

4 days ago I found this female with a similar colouration. But this seems to be clearly S. ribesii (all yellow legs).

Posted by Fred Fly on 07-05-2014 20:45
#6
But this female is belonging to the genus Epistrophe.

Posted by Juergen Peters on 07-05-2014 21:07
#7
Hello Piet,

Piet Nord wrote:
But this female is belonging to the genus Epistrophe.

now I am confused... awkward My "Epistrophe" turns out to be a Syrphus and my "Syrphus" to be an Epistrophe.