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Photo#164370
Caterpillar with eggs? - Cotesia congregata

Caterpillar with eggs? - Cotesia congregata
Sugar Land, Fort Bend County, Texas, USA
August 4, 2007
This was found on a sprig of potted parsley. What is it and are those eggs?

Images of this individual: tag all
Caterpillar with eggs? - Cotesia congregata Caterpillar with eggs? - Cotesia congregata Caterpillar with eggs? - Cotesia congregata

Moved

Tobacco hornworm, perhaps?
To my untrained eye it looks very much like a tobacco hornworm, red horn and slanted lines and all. Were there any tomato plants or related plants nearby?

Yes, those are wasp cocoons,
Yes, those are wasp cocoons, do you know what kind of plant this was on? Because that would help pinpoint the species of sphinx moth it is.

 
Type of plant
I'm pretty sure it was found on a parsley plant. Are you saying the caterpillar is a sphinx moth?

 
hard to tell
Yes, it is deffinately a sphinx moth larvae, but I'm not sure of the species. I couldn't find any sphinids in your area that feed on parsley but it most likely belongs to the subfamily Sphinginae of Sphingidae.

Wasp eggs?
I think there are wasps that do this.

 
Just to clarify
The tiny eggs of the parasitoid were laid on or inside the caterpillar. They hatched inside or entered inside the caterpillar. The parasitoid larvae developed inside the caterpillar eating away at its insides. When they are full grown larvae and ready to pupate, they emerge from the caterpillar and spin their silken cocoons attached to the caterpillar and that is what you see here. Oftentime they disable the motor section of the caterpillar brain before doing this so they are not harmed by future caterpillar movement. If you see such a creature again, save it and photograph the wasps as they emerge from the cocoons. That would be a great addition to BugGuide.

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