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.
STAPHYLINIDAE - SCAPHIDIINAE
4 tribes, 6 genera, 20 species
Tribe Cypariini
??Cyparium concolor (Fabricius, 1801): Andrews (1923), Schwarz (1876), Hubbard and Schwarz (1878) as Baeocera concolor Fab.; a SE sp.; should not be in MI; IL,IN in D&A - seUS in GBIF
Tribe Scaphidiini
Scaphidium piceum Melsheimer, 1844: Hubbard and Schwarz (1878), Ruesink and Parsons (2024), MSU-ARC
Scaphidium quadriguttatum Say, 1823: Hubbard and Schwarz (1878), Ruesink and Parsons (2024), MSU-ARC
Tribe Scaphiini
Scaphium castanipes Kirby: Hubbard and Schwarz (1878), Downie and Arnett (1996)
Tribe Scaphisomatini
Baeocera apicalis LeConte, 1860: Cornell (1967), Casey (1900), Hubbard and Schwarz (1878), Downie and Arnett (1996)
Baeocera charybda (Cornell, 1967): Löbl (2018)
Baeocera congener Casey, 1893: Löbl (2018), Hatch (1925), MSU-ARC
Baeocera discolor Casey, 1900: Löbl (2018), Casey (1900), Leng (1920)
Baeocera youngi (Cornell, 1967): Cornell (1967), Downie and Arnett (1996)
Baeocera nana Casey, 1893: Löbl (2018), Casey (1900), Leng (1920), MSU-ARC
Baeocera picea Casey, 1893: Löbl (2018), Cornell (1967), Casey (1900), Leng (1920), Downie and Arnett (1996)
Scaphisoma convexum Say, 1825: Leng (1920), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC
Scaphisoma flavescens (Casey, 1900): Casey (1900), Leng (1920), Downie and Arnett (1996)
?Scaphisoma lacustre (Casey, 1900): Downie and Arnett (1996); location "Lake Superior", which could be Canada
Scaphisoma pusillum LeConte, 1860: Peck and Thomas (1998), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC
Scaphisoma rubens Casey, 1893: Ruesink and Parsons (2024), MSU-ARC
Scaphisoma suturale LeConte, 1860: Hubbard and Schwarz (1878), Ruesink and Parsons (2024), MSU-ARC
Scaphisoma terminatum Melsheimer, 1844: Peck and Thomas (1998), Hatch (1925), Hubbard and Schwarz (1878)
Toxidium compressum Zimmermann, 1869: Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC
??Toxidium gammaroides LeConte, 1860: Schwarz (1876), Hubbard and Schwarz (1878); an eastern sp. known as far west as Toronto
This family list was last updated: April 21, 2023