Thread subject: Diptera.info :: Eristalis sp.

Posted by Rui Andrade on 28-02-2008 15:33
#1

Does anyone know which species this could be?

location: Oporto, Portugal
date: 26/02/2008

img135.imageshack.us/img135/8742/eri1fo0.jpg

img508.imageshack.us/img508/6356/eri2ea3.jpg

Posted by amalia_raluca on 28-02-2008 17:28
#2

Looks like eristalis pratorum(=similis)
Amalia

Posted by Andre on 28-02-2008 20:51
#3

It is.

Posted by Rui Andrade on 28-02-2008 21:52
#4

Thank you very much Amalia and Andre:)

Can you explain me why is that?

Posted by Andre on 29-02-2008 18:05
#5

Very similar to pertinax, but with a brownish and slightly longer stigma (about 4 times as long as broad). Differs clearly from pertinax by the dark fore and mid tarsae (pertinax has them yellow)! Very important.

Pertinax is not very common in Portugal, especially in the south, but similis is. This makes it even more difficult to find pertinax.

Posted by Rui Andrade on 29-02-2008 22:34
#6

Thank you Andre, I will try to find E. pertinax;)