Hygrotus artus is a species of beetle in the family Dytiscidae. It is known to only occur in Inyo and Mono counties, California, United States. Its common name is the Mono Lake diving beetle.Evans, A. V. and J. N. Hogue. (2006). Field Guide to Beetles of California. University of California Press.
It was previously thought to be extinct, NatureServe Explorer but recent work has shown that it is neither "extinct nor living in the alkaline Mono Lake."
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