Oriental Cockroach
Blatta orientalis
A shiny dark cockroach often called a 'water bug' due to its preference for cool, damp environments. Common in basements, drains, and wet areas of Singapore buildings.
Risk Level
High
Active Period
Year-round, nocturnal, favours cool damp conditions
Common Locations
Basements, Drains
Size
20–27mm adult body length
How to Identify Oriental Cockroach
Physical Appearance
Shiny dark brown to black body with a greasy appearance. Males have shortened wings covering about three-quarters of the abdomen. Females have vestigial wing stubs. Neither sex can fly.
Size
20–27mm adult body length
Common Locations
Basements, Drains, Damp areas, Under sinks
Habitat & Behaviour
Activity & Breeding
Prefers cool, moist environments unlike other cockroach species. Commonly found in basements, drains, and damp areas. Feeds on decaying organic matter and rubbish. Slower moving than other species. Produces a strong musty odour.
Active Period
Year-round, nocturnal, favours cool damp conditions
Signs of Oriental Cockroach Infestation
Health & Property Risks
Prevention Tips
Frequently Asked Questions
Other Cockroach Species
Need Help With Oriental Cockroach?
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