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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Ceraphronid and Megaspilid Wasps (Ceraphronoidea) » Ceraphronidae
Photo#1527304
Chalcid wasp
Copyright © 2018 Jenna Braun

Chalcid wasp
Mojave Desert, Mojave National Preserve, Granite Mountains County, California, USA
December 31, 1969
Size: 2mm
Caught in pan trap placed underneath Larrea tridentata shrub.

Images of this individual: tag all
Chalcid wasp Chalcid wasp Chalcid wasp
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Contributed by Jenna Braun on 29 May, 2018 - 2:43pm
Last updated 15 July, 2018 - 2:42am

Moved
Moved from Ants, Bees, Wasps and Sawflies.
… John S. Ascher, 15 July, 2018 - 2:42am login or register to post comments

Ceraphronid…
Your third image shows the linear pterostigma more clearly, suggesting this group. In your second image, you can also see the triangular shape of the pronotum laterally (also a diagnostic feature of the family).

See reference here.
… Ross Hill, 31 May, 2018 - 5:07pm login or register to post comments

Not quite a chalcid ...
This looks to be a member of the Ceraphronoidea, which includes 2 families. The Megaspilidae have a semi-circular stigma, while the Ceraphronidae do not. Unfortunately the banding of the wing prevents me from seeing if this stigma is present or not. If you still have the specimen, you should be able to detect the absence/presence of the stigma by backlighting the wing.
… Bob Zuparko, 30 May, 2018 - 10:48am login or register to post comments

 
A-ha!
Thank you!! I added a close-up of the wing - I do not see a stigma.
… Jenna Braun, 31 May, 2018 - 4:05pm login or register to post comments

 
Correct - neither do I ...
... so it undoubtedly is a ceraphronid.
… Bob Zuparko, 4 June, 2018 - 12:52pm login or register to post comments

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