Diptera.info

Posted by eguzki on 25-03-2007 15:42

Location: Hungary
Habitat: garden
Size: approx. 1 cm
Date: 25-03-07

I have found these black wasps by the dozen today afternoon in my garden. I presume that it is a Tenthredinidae wasp.

Edited by eguzki on 28-03-2007 18:44

Posted by Juergen Peters on 25-03-2007 21:15

Hello!

eguzki wrote:
I have found these black wasps by the dozen today afternoon in my garden. I presume that it is a Tenthredinidae wasp.

This early in the year and with that look I assume it is a Dolerus sp., but I'm no expert...

Posted by eguzki on 27-03-2007 08:18

Hi Juergen!

I guess your conclusion must be right; these sawflies are the earliest spring fliers. I found them amongst the lower vegetation of my garden and all of them fly awkwardly. I have found very similar species through the net in the family Argidae but I think their habit is certainly different.

Thank you:)

Edited by eguzki on 27-03-2007 08:19

Posted by David Gibbs on 27-03-2007 11:41

looks to me more like a Blennocampini such as Phymatocera aterrima (Klug), what plant is it most associated with? the first photo looks as if it might be on a Polygonatum.

Posted by eguzki on 27-03-2007 18:25

David Gibbs wrote:
looks to me more like a Blennocampini such as Phymatocera aterrima (Klug), what plant is it most associated with? the first photo looks as if it might be on a Polygonatum.

Hi David!

After I had read your thread I went out taking some new pic and studying these questionable sawflies. The plant is not a Polygonatum but a very common Iris but I do not know which species exactly. These sawflies mostly active on the rough and spear shaped leaves of Iris. They move very slowly and fly clumsily. Their size does not reach 1 cm.

The size compared with the leaves:

Edited by eguzki on 27-03-2007 20:33

Posted by Pierre-Nicolas Libert on 28-03-2007 14:51

The species Rhadinoceraea micans (Klug, 1814) feeds on Iris sp. and it looks to that...