Erichsonius patella
(Horn, 1884)
Kneecap Rove Beetle
Erichsonius , commonly known as the Kneecap , is a of rove beetle in the . It is a member of the large and diverse Erichsonius within the tribe Erichsoniina. The species was first described by George Henry Horn in 1884. Like other rove beetles, it exhibits the characteristic that expose most of the .

Pronunciation
How to pronounce Erichsonius patella: /ɛˈrɪksoʊniəs pəˈtɛlə/
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Distribution
Eastern North America. Recorded from Canada (New Brunswick, Nova Scotia, Ontario, Quebec) and the United States (Alabama, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Michigan, Missouri, North Carolina, New Jersey, New Hampshire, New York, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont, West Virginia).
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Taxonomic Notes
The specific epithet '' (Latin for 'small dish' or 'kneecap') likely refers to some morphological feature of the , though the original description by Horn (1884) would need to be consulted for confirmation. The species is placed in the subtribe Erichsoniina within the tribe Staphylinini, Staphylininae.