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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Braconid and Ichneumonid Wasps (Ichneumonoidea) » Braconid Wasps (Braconidae) » Acampsohelconinae » Urosigalphus
Photo#871432
Parasitic Wasp with weird opening under abdomen - Urosigalphus
Copyright © 2013 nnasseri

Parasitic Wasp with weird opening under abdomen - Urosigalphus
Sinton, San Patricio County, Texas, USA
August 12, 2013
Size: 4 mm
Is this a Eulophid (Eulophidae)? It has a weird opening under its abdomen (see other picts) below the ovipositor. The opening almost looks like spinnerets? It is on all of the specimens I have collected. These were collected on mesquite trees.

Images of this individual: tag all
Parasitic Wasp with weird opening under abdomen - Urosigalphus Parasitic Wasp with weird opening under abdomen - Urosigalphus Parasitic Wasp with weird opening under abdomen - Urosigalphus
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Contributed by nnasseri on 1 December, 2013 - 8:51pm
Last updated 3 December, 2013 - 8:10pm

Moved
Moved from Cheloninae.
… Bob Carlson, 3 December, 2013 - 8:10pm login or register to post comments

Moved
Moved from ID Request.
… v belov, 2 December, 2013 - 2:42pm login or register to post comments

 
Thanks for the help. Also doe
Thanks for the help. Also does anyone know what that opening is for?
… nnasseri, 2 December, 2013 - 3:00pm login or register to post comments

 
Carapace
Per a message I got from Dr. Paul Marsh, I gather that the metasomal terga are fused as a carapace which partially encloses the sternites, leaving them visible only an opening surrounded by the carapace. According to Dr. Marsh, this is not Cheloninae but rather a species of the genus Urosigalphus, which he thought to still be in the subfamily Sigalphinae. TaxaPad, however, indicates Urosigalphus to be in the subfamily Acampsohelconinae. I will try to verify the correctness of that subfamily placement with Dr. van Achterberg in the Netherlands.
… Bob Carlson, 2 December, 2013 - 4:59pm login or register to post comments

Cheloninae?
… Brad Barnd, 1 December, 2013 - 11:40pm login or register to post comments

 
I think you nailed it....
... with Cheloninae (Braconidae), although the wing venation gives me pause - I thought Cheloninae had a 2nd submarginal cell, but I don't see it in this image.
… Bob Zuparko, 2 December, 2013 - 11:17am login or register to post comments

 
The reason I didn't think it
The reason I didn't think it was Braconidae is the key I am using (Insects: Their Natural History and Diversity: With a Photographic Guide to Insects of Eastern North America) is the identifier is >15 segment on the antennae. These are
… nnasseri, 2 December, 2013 - 1:48pm login or register to post comments

Guessing the size units are wrong
Maybe mm instead of cm? You'll have to open each image, edit, and make the changes. One change does not update them all. Are these three images of the same individual?
… john and jane balaban, 1 December, 2013 - 10:22pm login or register to post comments

 
yes same individual but all a
yes same individual but all about the same size 4-5mm and same opening
… nnasseri, 1 December, 2013 - 11:00pm login or register to post comments

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