Introduction. The name of each listed species is followed by up to five sources that report the species as occurring in Michigan. Sources in all upper-case letters refer to specific insect collections: MSU-ARC refers to material held by the Michigan State University Arthropod Research Collection (data provided by G. Parsons). All others refer to collection data extracted from the Symbiota Collections of Arthropods Network (SCAN) database online at https://scan-bugs.org/. See the Methods page for a list of abbreviations and associated collections.

Species names preceded by a single '?' are considered probable (for occurring in Michigan) but uncertain records. Those preceded by '??' are considered possible but unlikely to occur in Michigan. Species that are fully accepted as having valid Michigan records are unmarked. Species reported in the literature that we consider to be erroneous Michigan records are in a separate list following the others.

This subfamily does not use tribes.

STAPHYLINIDAE - STENINAE

1 subfamily, 2 genera, 55 species

?Dianous chalybeus LeConte, 1863: Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

Dianous coerulescens (Gyllenhal, 1810): Herman (2001)

Stenus advena (Casey, 1854): Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus angustus Casey, 1884: Herman (2001), Puthz (1972), Leng (1920), Downie and Arnett (1996), MSU-ARC

Stenus annularis Erichson, 1840: Herman (2001), Puthz (1972), Bright (2020), Hubbard and Schwarz (1878), MSU-ARC

Stenus arculus Erichson, 1840: Herman (2001), Townsend (1889), MSU-ARC

Stenus austini Casey, 1884: Casey (1884), Herman (2001); Casey type series incl. several UP locations

Stenus brivioi Puthz, 1972: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996)

Stenus callosus Erichson, 1840: Herman (2001), Puthz (1972), MSU-ARC

Stenus canaliculatus Gyllenhal, 1827: Herman (2001), Puthz (1972), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus capucinus Boheman, 1858: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus carinicollis Casey, 1884: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus caseyi Puthz, 1972: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus colon Say, 1831: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus colonus Erichson, 1840: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus comma LeConte, 1863: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996)

Stenus croceatus (Casey, 1884): Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus curtus Casey, 1884: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus difficilis Casey, 1884: Herman (2001), Puthz (1972), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus dissentiens (Casey, 1884): Herman (2001), Bright (2020), Downie and Arnett (1996), MSU-ARC

?Stenus dolosus Casey, 1884: KU:SEMC; Emmet Co, Harbor Springs, 1 mi W

Stenus egenulus Puthz, 1988: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus egenus Erichson, 1840: Herman (2001), Puthz (1972), Leng (1920), Hubbard and Schwarz (1878), MSU-ARC

Stenus erythropus Melsheimer, 1844: Herman (2001), Puthz (1972), Bright (2020), Hubbard and Schwarz (1878), MSU-ARC

Stenus femoratus Say, 1831: Herman (2001), Puthz (1972), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

Stenus flavicornis Erichson, 1840: Herman (2001), Puthz (1972), Andrews (1923), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

??Stenus fulvoguttatus Notman, 1920: Bright (2020); MI record needs confirmation, Downie and Arnett (1996) has it only in NY

Stenus gratiosus Casey, 1884: Herman (2001), Puthz (1972), Leng (1920), Downie and Arnett (1996)

Stenus insperatus Puthz, 1972: Puthz (1972), Herman (2001), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus intrusus Casey, 1884: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus juno (Paykull, 1789): Herman (2001), Puthz (1972), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

?Stenus laccophilus Casey, 1884: Hatch (1925), Bright (2020); Bright based on UMMZ:UMMZI specimen(s)

Stenus mammops Casey, 1884: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996)

Stenus morio Gravenhorst, 1806: Herman (2001), Puthz (1972), Leng (1920), Downie and Arnett (1996), MSU-ARC

?Stenus nanus Stephens, 1833: Bright (2020), Downie and Arnett (1996)

Stenus neglectus Casey, 1884: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus parallelopipedus Mäklin, 1852: Casey (1884), Bright (2020), Downie and Arnett (1996); Casey described the syn S. animatus from Marquette

Stenus pauperculus Casey, 1884: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996); GBIF has this as a jr. syn. of S. brumalis Casey

Stenus pubescens Stephens, 1833: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus pudicus Casey, 1884: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus pumilio Erichson, 1839: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus punctatus Erichson, 1840: Herman (2001), Puthz (1972), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

Stenus pusillimus Puthz, 1971: Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus reconditus (Casey, 1884): Herman (2001), Bright (2020), Downie and Arnett (1996)

Stenus rossi Sanderson, 1958: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996)

Stenus scabiosus Casey, 1884: Herman (2001), Bright (2020), Downie and Arnett (1996); Casey type from Marquette, Lake Superior

?Stenus scrupeus Casey, 1884: Downie and Arnett (1996), Bright (2020)

??Stenus sectilifer Casey, 1884: Hatch (1925) as Stenus milleporus Csy.; Herman (2001) has it no closer than NY & DC, GBIF has this as a jr. syn. of S. milleporus Casey

Stenus semicolon LeConte, 1863: Herman (2001), Bright (2020), Leng (1920), Hubbard and Schwarz (1878), Downie and Arnett (1996)

Stenus sibiricus Sahlberg, 1880: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus strangulatus Casey, 1884: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

Stenus stygicus Say, 1831: Herman (2001), Puthz (1972), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

Stenus varipes (Casey, 1884): Herman (2001), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus vicinus Casey, 1884: Herman (2001), Puthz (1972), Bright (2020), Downie and Arnett (1996), MSU-ARC

Stenus vinnulus Casey, 1884: Herman (2001), Bright (2020), Leng (1920), Downie and Arnett (1996)

This family list was last updated: April 14, 2023