nicjc's picture

Wasp with a white dot

Observed: 18th November 2009 By: nicjcnicjc’s reputation in Invertebrates
Wasp
Description:

Looks wasplike, seen on farmland , alone on wooden post

Identifications
Species interactions

No interactions present.

Comments

madasyernan's picture

Ichneumon stramenarius

did think it may be Ceropales maculata (wasp)as i could not see the yellow band to well,

but so wrong.

Sam, Student.

Syrphus's picture

Ichneumons (Hymenoptera,

Ichneumons (Hymenoptera, Apocrita, Parasitica) belong to a huge group which are extremely difficult to identify to species even from specimens. Very few people are brave enough to attempt it, and unless you are an expert, you should not even dream of doing it from a picture.

They are often confused with sphecid (digger) and pompilid (spider-hunting) wasps (Apocrita, Aculeata). C. maculata is a pompilid. It is very easy to distinguish aculeates from ichneumons, as no aculeate wasp has more than 13 antennal segments while ichneumons always have many more (>=16) usually very short bead-like segments - the aculeates usually have longer segments. You can seen that very easily with the naked eye.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

nicjc's picture

Ive checked in a couple of

Ive checked in a couple of guides and agree with your ID

Conservation Student

Bumblebee's picture

Hi guys, I think Sam's ID of

Hi guys, I think Sam's ID of this is correct the Ichneumonidae is part of the animalia kingdon and the phylum is arthropoda class being insecta and the order being hymenoptera....Jo

Jo :)
Conservation Student Cornwall

ChrisR's picture

Ichneumonidae

charlieb's ident of "Ichneumonidae" is as close as you can get from this photo - and as a general rule you cannot identify them by comparing colour patterns to galleries of ichneumon photos because there is a huge amount of morphological convergence in this group and, coupled with species variability, it leads to a real minefield for the non-expert ;)

nicjc's picture

Ichneumonidae

Yes Chris thanks for your comment, im learning all the time from this sute, its a valuable tool for a student, :o

Conservation Student

tootsietim's picture

The white dot?

The post is titled 'wasp with a white dot'. As it's not clear in the photo, do you know what the white spot was?

ChrisR's picture

It's just the colour of the

It's just the colour of the wasp's scutellum, the most posterior part of the thorax, just above the propodeum :) Several species have a mark like this.