Dinothenarus nigrellus
(Horn, 1879)
Dinothenarus nigrellus is a of rove beetle in the Staphylinidae. It is a relatively obscure species with limited published biological information, known primarily from collection records in western North America. The Dinothenarus belongs to the tribe Staphylinini, one of the largest and most diverse groups within rove beetles.

Pronunciation
How to pronounce Dinothenarus nigrellus: //ˌdaɪ.nəˈθiː.nə.rəs nɪˈɡrɛl.ləs//
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Distribution
Western North America: Canada (British Columbia), United States (California, Idaho, Oregon, Washington).
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Taxonomic note
The Dinothenarus was established to accommodate previously placed in related genera within the Staphylinini. Dinothenarus nigrellus was originally described by Horn in 1879 under a different generic combination.