American Cockroach
Periplaneta americana
The largest common cockroach species in Singapore, frequently entering buildings from sewer systems and drains. Strong fliers that can cause alarm in homes and businesses, especially on warm humid evenings.
Risk Level
High
Active Period
Year-round, primarily nocturnal, increased flight on warm humid nights
Common Locations
Sewers, Drains
Size
35–40mm adult body length
How to Identify American Cockroach
Physical Appearance
Large reddish-brown body with a yellowish figure-8 pattern on the pronotum. Well-developed wings that extend beyond the abdomen. Cerci visible at tail end.
Size
35–40mm adult body length
Common Locations
Sewers, Drains, Basements, Commercial premises
Habitat & Behaviour
Activity & Breeding
Lives primarily in sewers, drains, and basements. Enters buildings through drain openings and gaps. Strong flier, especially on warm humid nights. Prefers warm, moist environments with access to decaying organic matter.
Active Period
Year-round, primarily nocturnal, increased flight on warm humid nights
Signs of American Cockroach Infestation
Health & Property Risks
Prevention Tips
Frequently Asked Questions
Other Cockroach Species
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