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.
ANTHICIDAE
5 subfamilies, 3 tribes, 12 genera, 30 species (plus 4 species reported for Michigan in error)
Subfamily Anthicinae
Tribe Anthicini
Amblyderus granularis (LeConte, 1850): Chandler (1999), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Amblyderus pallens (LeConte, 1850): Chandler (1999), Hatch (1924), Hubbard and Schwarz (1878), MSU-ARC
Anthicus cervinus LaFerté-Sénectère, 1847: Werner (1964), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Anthicus coracinus LeConte, 1852: Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Anthicus ephippium LaFerté-Sénectère, 1847: Werner (1964), Hubbard and Schwarz (1878), MSU-ARC
Anthicus flavicans LeConte, 1852: Werner (1964), Downie and Arnett (1996), MSU-ARC
Anthicus haldemani LeConte, 1852: Werner (1964), Downie and Arnett (1996), MSU-ARC
Anthicus lutulentus Casey, 1895: Werner (1964), Downie and Arnett (1996), MSU-ARC
Anthicus melancholicus LaFerté-Sénectère, 1847: Werner (1964), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Anthicus scabriceps LeConte, 1850: Werner (1964), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Ischyropalpus nitidulus (LeConte, 1851): Ruesink and Parsons (2021), MSU-ARC; original IDs of MSU-ARC specimens by Bonadona, verified by WGR
Malporus cinctus (Say, 1824): Chandler (1997b), Andrews (1923), MSU-ARC
Malporus formicarius (LaFerté-Sénectère, 1847): Chandler (1997b), MSU-ARC
Omonadus floralis (Linnaeus, 1758): Werner (1964), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Omonadus formicarius (Goeze, 1777): Werner (1964), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC
Sapintus fulvipes (LaFerté-Sénectère, 1847): Werner (1962), Downie and Arnett (1996), Andrews (1923), Hubbard and Schwarz (1878), MSU-ARC
Sapintus lemniscatus Werner, 1962: Werner (1962), Downie and Arnett (1996); holotype & many paratypes from MI
Sapintus pubescens (LaFerté-Sénectère, 1847): Ruesink and Parsons (2021), MSU-ARC
Sapintus pusillus (LaFerté-Sénectère, 1847): Werner (1962), Downie and Arnett (1996), MSU-ARC
Stricticollis tobias Marseul, 1879: Ruesink and Parsons (2021), MSU-ARC
Subfamily Eurygeniinae
Tribe Eurygeniini
?Retocomus wildii (LeConte, 1855): Ruesink and Parsons (2021), MSU-ARC; ID of MSU-ARC specimen by Andrews, reviewed by WGR & accepted with some doubt
Stereopalpus vestitus (Say, 1824): LeConte (1855), Hatch (1924), MSU-ARC; S. badiipennis (now a syn.) described from Michigan in LeConte (1855)
Subfamily Macratriinae
Tribe Macratriini
Macratria confusa LeConte, 1855: Ruesink and Parsons (2021), MSU-ARC
Macratria murina (Fabricius, 1801): Ruesink and Parsons (2021), MSU-ARC
Subfamily Notoxinae
Notoxus anchora Hentz, 1827: Chandler (1982), Hubbard and Schwarz (1878), MSU-ARC
Notoxus bifasciatus (LeConte, 1847): Young (1984), Andrews (1923), MSU-ARC
Notoxus desertus Casey, 1895: Chandler (1982), Hubbard and Schwarz (1878), MSU-ARC; BugGuide: "the only way to separate [N. monodon and N. desertus] is to look at male genitalia. --D.S. Chandler, 2.vii.2010"; however, N. monodon is in SE, not Mich.
Notoxus subtilis LeConte, 1852: Chandler (1982), Downie and Arnett (1996), MSU-ARC
Subfamily Tomoderinae
?Tomoderus constrictus (Say, 1826): Leng (1920), CHAS:ENT; needs confirmation, which requires checking male genitalia; should be in MI
??Tomoderus interruptus LaFerté-Sénectère, 1849: Hubbard and Schwarz (1878), MSU-ARC; needs confirmation, which requires checking male genitalia; Werner (1956) has it in central IN, but not farther north
The following species were reported from Michigan, but we consider them to be misidentifications or mislabeled:
Cyclodinus californicus (LaFerté-Sénectère, 1849): MSU-ARC; 1 Driesbach specimen, ID by F. Werner; ID appears correct, but if so the specimen cannot be from MI as this is an eastern coastal species
Formicilla munda LeConte, 1852: Andrews (1923), as Formicomus mundus Lec.; F. munda occurs only in SW USA
Stereopalpus mellyi LaFerté-Sénectère, 1846: Hatch (1924); a SE US sp. (MD-SC-AL-MS) (BugGuide: D.S. Chandler, pers. comm.), should not occur in MI
Notoxus apicalis LeConte, 1852: Leng (1920); a western sp. that should not be in MI
This family list was last updated: September 2, 2021