Kebnat

Graphoderus

3 species

In Québec, the genus Graphoderus (family Dytiscidae) counts 3 species of insects. The stars? Massachusetts Predaceous Diving Beetle and Perplexed Predaceous Diving Beetle, the most often observed. The richest region: Capitale-Nationale, with 2 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. Capitale-Nationale2
  2. Montréal1
  3. Outaouais1
  4. Lanaudière1
  5. Laurentides1

Graphoderus 3

Coleoptera
All4,550Lepidoptera2,108Coleoptera1,199Hemiptera482Hymenoptera230Diptera210Odonata151Orthoptera61Trichoptera35Ephemeroptera23Neuroptera21Mecoptera9Blattodea7Plecoptera7Dermaptera4Mantodea2Phasmida1
Dytiscidae
All1,199Curculionidae143Chrysomelidae142Cerambycidae139Carabidae118Staphylinidae78Elateridae47Scarabaeidae46Coccinellidae42Buprestidae34Tenebrionidae33Dytiscidae30Nitidulidae27Cantharidae20Dermestidae20Cleridae19Mordellidae15Cicindelidae14Erotylidae13Hydrophilidae12Ptinidae12Meloidae11Lycidae10Histeridae9Lampyridae9Brentidae8Mycetophagidae8Pyrochroidae8Scirtidae8Endomychidae7Silvanidae7Anthribidae6Geotrupidae6Tetratomidae6Attelabidae5Bostrichidae5Melandryidae5Melyridae5Zopheridae5Anthicidae4Lucanidae4Oedemeridae4Aderidae3Byrrhidae3Cryptophagidae3Laemophloeidae3Scraptiidae3Eucnemidae2Haliplidae2Kateretidae2Latridiidae2Psephenidae2Trogidae2Byturidae1Cerylonidae1Ciidae1Corylophidae1Cucujidae1Cupedidae1Dryopidae1Eucinetidae1Gyrinidae1Helophoridae1Heteroceridae1Leiodidae1Lophocateridae1Lymexylidae1Monotomidae1Mycetaeidae1Orsodacnidae1Passandridae1Peltidae1Phalacridae1Ptilodactylidae1Salpingidae1Stenotrachelidae1Synchroidae1Thanerocleridae1Throscidae1Thymalidae1Trogossitidae1
Massachusetts Predaceous Diving Beetle10 observations
Perplexed Predaceous Diving Beetle4 observations
Occidental Predaceous Diving BeetleGraphoderus occidentalis