Thread subject: Diptera.info :: The Wasp challenge! (Cambs. UK)
Posted by Gman on 03-07-2022 22:06
#1
Hi All
A couple wasps that are driving me to distration. They were both found in Brampton Wood, Cambridgeshire.
Could someone please take a look and see if they are possible to ID?
Thanks. Gareth
Posted by Gman on 03-07-2022 22:06
#2
2nd one
Posted by Sundew on 04-07-2022 04:03
#3
I give No. 2 a try: male
Amblyteles armatorius, Ichneumonidae. Here the species is common and can be met on flowering Umbellifers. It should have two spikes on the propodeum (see
https://www.bioim...091.htm?13).
No. 1 is also an Ichneumonid, but I do not dare to guess a genus...
Regards, Sundew
Posted by Matzke-Hajek on 04-07-2022 09:56
#4
the first one is probably Ichneumon bucculentus
Greetings
Günter
Posted by Gman on 05-07-2022 22:17
#5
Hi Sundew
I believe your ID is correct. I have read that the pines on the thorax and the wide yellow stripes split by a narrow black stripe are diagnostic.
Whilst I cannot see the spines, the stripes are exactly the same to numberour pictures I have seen.
As far as the locale is concerned. This wasp is recorded in neighbouring counties and I am told likely to under-reported.
Thanks for your help, Gareth
Posted by Gman on 05-07-2022 23:15
#6
Hi Günter
Ichneumon bucculentus is not common at all in the UK but I followed your lead and found a number of likely candidates. https://www.gbif.org/species/5030282
I. albiger
I. suspiciosus - https://www.bioimages.org.uk/html/Ichneumon_suspiciosus.htm
I. extensorius - https://www.bioimages.org.uk/html/Ichneumon_extensorius.htm
I. confusor - https://www.bioimages.org.uk/html/Ichneumon_confusor.htm
The hind femur and tibia are "highly enlarged" as per https://www.bioimages.org.uk/html/r170684.htm?4 this could indicate I. confusor or I. albiger - It is suggested here that males are indistinguishable - https://www.bioimages.org.uk/html/Ichneumon_albiger-confusor.htm
I think I am stuck with Inchneumon sp. :o
Thanks for your help, Gareth