Thread subject: Diptera.info :: WWW: Wingless Winter Wasp ;-)

Posted by Juergen Peters on 29-12-2007 20:35
#1

Hello!

I found this wingless wasp yesterday afternoon at a beech in the forest (oaks also present nearby), Ostwestfalen/Germany. Length about 5-6 mm. Could it be Biorrhiza pallida (I find the name sometimes with two 'r', sometimes only one) from the Cypinidae (gall wasps)? Thanks!

Larger picture (157 KCool:
http://www.foto-u..._W_big.jpg

Edited by Juergen Peters on 29-12-2007 20:36

Posted by Juergen Peters on 29-12-2007 20:36
#2

Another picture.

Posted by ChrisR on 29-12-2007 23:21
#3

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. Smile

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. Smile


Thanks! According to "Entomofauna germanica" Biorhiza pallida (there spelled with only one 'r'Wink is the only species in that genus in Germany. But I don't know, if there are similar looking wasps in related genera.

Posted by ChrisR on 31-12-2007 12:27
#5

Andricus spp. are orange but they (all?) have wings as far as i know, so Biorhiza seems the most plausible. Smile

Posted by Juergen Peters on 31-12-2007 19:33
#6

Chris Raper wrote:
Andricus spp. are orange but they (all?) have wings as far as i know, so Biorhiza seems the most plausible. Smile


Thanks, Chris! And a happy new year! Grin

Posted by jorgemotalmeida on 31-12-2007 22:45
#7

cynipids. Smile did you see any torymids around? Wink

Posted by Juergen Peters on 01-01-2008 02:08
#8

Hello, Jorge!

jorgemotalmeida wrote:
did you see any torymids around? Wink


No, the last Chalcidoidea were around here at the end of November to beginning of December:
http://insektenfo...adid=11718
http://insektenfo...adid=11651

Look here for the last insects and arachnids of the year 2007 Cool (taken at 23 o'clock on December-31 in the garden, 0 ?C, very misty and wet):
http://insektenfo...adid=12140
Some more nightly spiders from Dec-30:
http://insektenfo...adid=12137