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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Chalcidoid Wasps (Chalcidoidea) » Pteromalid Wasps (Pteromalidae)
Photo#1890015
Pteromalus cassotis
Copyright © 2020 Joe Krauska

Pteromalus cassotis
St. Louis, St. Louis County, Missouri, USA
August 29, 2020
Found on Swamp Milkweed (Asclepias incarnata).

The wasp wasn't active, it didn't move/forage at all unlike other parasitoid wasps I've worked with, which makes me think the wasp found its monarch host as a caterpillar and was waiting for it to transition into a chrysalis.

Thank you to the podcast "When parasitoids attack!" by Brains On Podcast and the interview with Carl Stenoien from the University of Minnesota.

Images of this individual: tag all
Pteromalus cassotis Pteromalus cassotis
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Contributed by Joe Krauska on 9 September, 2020 - 11:39am
Last updated 15 September, 2020 - 11:17am

Moved
Moved from ID Request.
… Bob Zuparko, 15 September, 2020 - 11:17am login or register to post comments

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