Posted by Juergen Peters on 30-12-2007 00:06
#4
Hello, Chris!
Chris Raper wrote:
I'm not sure if you have alternative species but it does look like a cynipid and B.pallida would fit the bill because they are active around oaks on warmer days in winter. :)
Thanks! According to "Entomofauna germanica"
Biorhiza pallida (there spelled with only one 'r') is the only species in that genus in Germany. But I don't know, if there are similar looking wasps in related genera.