Kebnat

Household Cockroaches

Blattidae · 4 species

In Québec, the family Blattidae (order Blattodea) counts 4 species of insects. The stars? Australian Cockroach, American Cockroach and Oriental Cockroach, the most often observed. The richest region: Montréal, with 3 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.

Species observed by region

Where do the observations come from?

  • Mostly iNaturalist : photos taken by people all over Québec, with the species confirmed by the community.
  • Other public sources : such as eBird for birds and the provincial forest inventories, gathered by GBIF, the global biodiversity data network.
  • What we keep : confirmed observations, with an exact position (not blurred to protect a rare species), that their author allows to be reused.
  • One place counts once : several observations of the same species at the same spot (within 11 m) count as one.
  • So our numbers are lower : than iNaturalist’s total. A region without observations does not mean the species does not live there.

Data downloaded in September 2026.

  1. Montréal3
  2. Estrie1
  3. Abitibi-Témiscamingue1
  4. Montérégie1

Household Cockroaches 4

Blattodea
All4,550Lepidoptera2,108Coleoptera1,199Hemiptera482Hymenoptera230Diptera210Odonata151Orthoptera61Trichoptera35Ephemeroptera23Neuroptera21Mecoptera9Blattodea7Plecoptera7Dermaptera4Mantodea2Phasmida1
Blattidae
All7Blattidae4Blattellidae2Pseudophyllodromiidae1
Australian Cockroach14 observations
American Cockroach2 observations
Oriental Cockroach1 observations
Brown CockroachValidiblatta brunnea