
Community identification
Oriental cockroach (likely adult and nymph)
Blatta orientalis
- Order & Family
- Blattodea, Blattidae
- Size
- Adults are about 18–30 mm long; nymphs are smaller and wingless, as shown by the specimen on the right.
Natural Habitat
Damp, cool, sheltered places such as basements, drains, crawl spaces, and areas around leaking plumbing; commonly found indoors near ground level.
Diet & Feeding
Omnivorous scavengers that feed on food scraps, starches, decaying organic matter, and occasionally animal material.
Behavior Patterns
Mostly nocturnal, moisture-dependent, and poor climbers; they hide in cracks by day and forage at night. Females produce egg cases, and nymphs develop through several molts.
Risks & Benefits
They can contaminate food and surfaces and may mechanically spread microbes; shed skins and droppings can aggravate allergies or asthma. They provide limited ecological value as decomposers outdoors.