Winged Ant
3-25 mm · Depending on species and caste Insect · Low risk Winged Ant Various species (Formicidae) The winged ant is not a species: it is the reproductive stage, males and young queens, produced by most ant species. These winged ants leave the nest for their nuptial flight on warm, calm, sunny days, often after […]
European Fire Ant

3.5-5.5 mm · Uniform reddish brown Insect · Moderate risk European Fire Ant Myrmica rubra The European fire ant (Myrmica rubra), also called the European red ant, is an invasive species from Europe that is established in Quebec. Small and a uniform reddish brown, it nests in damp, shady soil, with no visible mound. Unlike […]
Black Ant
2-4 mm · Dark brown to blackish Insect · Low risk Black Ant Lasius neoniger In Quebec, the black ant found in lawns, along paths and around houses is most often the Labour Day ant (Lasius neoniger), joined in wooded areas by Lasius americanus. It lives in the soil, outdoors, but comes into homes looking […]
Odorous House Ant

2-3 mm · Dark brown to black Insect · Moderate risk Odorous House Ant Tapinoma sessile The odorous house ant gets its name from the smell of rotten coconut it gives off when crushed. Very common in Quebec, it moves into homes looking for sweet food and moisture. Its colonies, which have several queens, can […]
Pavement Ant
2.5-3.5 mm · Dark brown Insect · Low risk Pavement Ant Tetramorium immigrans Commonly called the sand ant or sidewalk ant, the pavement ant is very common in Quebec. Its nest is between paving stones, but it comes into homes looking for food. SIZE 2.5 to 3.5 mm COLOUR Dark brown ACTIVITY Diurnal SEASON April […]
Carpenter Ant
Worker 6-13 mm · Black to brown Insect · High risk Carpenter Ant Camponotus spp. The carpenter ant does not eat wood: it hollows it out to house its colony. The galleries spread year after year through damp or decaying wood, and the main nest is often outside, in a stump or a tree. Targeting […]