Knowledgebase

Insect eggs #823028

Asked March 21, 2023, 2:20 PM EDT

Can you identify which insect left these eggs?

Montgomery County Maryland

Expert Response

Hi, 

Those look like katydid eggs that have been parasitized by a wasp. Both beneficial insects and no need for alarm. The wasps lay eggs in the katydid egg and then hatches and grows, eating the katydid egg contents and then the new adult wasp chews its way out of the katydid egg. 

Nature can be cruel but cool!

Emily 

Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied March 21, 2023, 3:01 PM EDT

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