Praying Mantis Egg Case (Ootheca)
Scientific Name: Mantodea (Order)
Order & Family: Order: Mantodea; Family: Mantidae
Size: 2 to 5 centimeters in length.
Natural Habitat
Found attached to twigs, branches, fences, and walls in gardens, meadows, and shrublands.
Diet & Feeding
Eggs do not eat; nymphs and adults are carnivorous, eating insects and occasionally small vertebrates.
Behavior Patterns
The female produces a frothy liquid that hardens into a protective, papery case to insulate eggs through winter; hundreds of nymphs emerge in spring.
Risks & Benefits
No risk to humans; highly beneficial to ecosystems and gardeners as biological pest control.
Identified on: 2/19/2026