''Peritrechus tristis'' is a species of dirt-colored seed bug in the family

Rhyparochromidae The Rhyparochromidae are a large family (biology), family of true bugs (order Hemiptera). Many species under Rhyparochromidae are commonly referred to as seed bug (disambiguation), seed bugs, as are other species within the wider Pentatomomorpha ...

. It is found in North America.

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Further reading