Cockroaches of Columbia County, Oregon

Cockroaches are an ancient group of insects, most closely related to termites and somewhat more distantly related to mantises. Together they are part of a larger group that also includes grasshoppers and crickets, stick insects, earwigs, and stoneflies. Cockroaches are generalists that can live in a wide range of habitats (though rarely in cold regions) and eat opportunistically. Some species, like the German Cockroach, are social insects that live in colonies.

German Cockroach Blattella germanica columbia county oregon
German Cockroach – 0.5″ long. Brown with two black streaks that are most distinct in front. Sensitive to cold and typically only found in homes in cities. Introduced from Eurasia. (photo © Nikolai Vladimirov)

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