Bug Identifier
Odorous house ant
Community identification

Odorous house ant

Tapinoma sessile

Order & Family
Hymenoptera: Formicidae
Size
1.5 mm to 3.2 mm (1/16 to 1/8 inch) in length
See this bug in the Encyclopedia

Natural Habitat

Found widely across North America in various environments, commonly nesting under rocks, woodpiles, or inside building wall voids and near moisture sources.

Diet & Feeding

Omnivorous; they prefer sweets and honeydew produced by aphids but will also consume protein-rich dead insects and grease.

Behavior Patterns

They travel in distinct trails and move their nests frequently in response to environmental changes. When crushed, they emit a distinct smell often described as rotten coconut.

Risks & Benefits

They do not bite or sting and are primarily a nuisance pest that can contaminate food packages. In the ecosystem, they assist in recycling nutrients and controlling other small insect populations.