Cockroach Egg Case (Ootheca)
Scientific Name: Blattodea (various species, often Periplaneta americana)
Order & Family: Order: Blattodea; Family: Blattidae
Size: Typically measures between 5mm to 10mm in length.
Natural Habitat
Found in dark, humid, and secluded areas such as behind appliances, in cabinets, under sinks, or in crawl spaces.
Diet & Feeding
Does not eat; this is a protective casing contains developing embryos. The nymphs inside will eat organic debris once hatched.
Behavior Patterns
The female deposits the ootheca near food sources in safe areas. Depending on the species, it can contain 14 to 50 eggs and hatch in 24 to 80 days.
Risks & Benefits
Risks: Signifies an active infestation. Cockroaches can spread pathogens and cause allergens. Benefits: None to humans; indicates an environmental imbalance.
Identified on: 5/17/2026