Pelophila rudis
(LeConte, 1863)
wild mud-loving beetle
Pelophila rudis is a black ground beetle in the Nebriinae, described by John Lawrence LeConte in 1863. The occurs in Canada and the United States (Arkansas). Both and larvae are predatory. It inhabits wet, vegetated margins of eutrophic marshes, slow streams, swamps, and sandy lakeshore forests.

Pronunciation
How to pronounce Pelophila rudis: /pɛˈloʊ.fɪ.lə ˈruː.dɪs/
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Habitat
Dense, wet vegetation at the margins of eutrophic marshes, marshy borders of slow streams, swamps, and lakeside forests near sandy lake shores.
Distribution
Canada (Alberta, British Columbia) and Arkansas, United States.
Diet
Both and larvae are predatory.