''Stygoporus oregonensis'' is a species of

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

in the family Dytiscidae, the only species in the genus ''Stygoporus''. They were first identified in an Oregon bathroom in 1984. Eight specimens were collected by

Oregon State University Oregon State University (OSU) is a public land-grant, research university in Corvallis, Oregon. OSU offers more than 200 undergraduate-degree programs along with a variety of graduate and doctoral degrees. It has the 10th largest engineering co ...

before the bathroom was bleached. There have been no reported specimens found until 2014 to 2016.

References

Dytiscidae Endemic fauna of Oregon Endemic insects of the United States {{Dytiscidae-stub