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.

Thomas (2004) states that the Palaearctic Pediacus depressus (Herbst) does not occur in North America, and that records for that species refer to P. subglabrus LeConte.  BugGuide lists both for eastern North America.  We are rejecting the P. depressus records of Hubbard and Schwarz (1878) for Michigan.

CUCUJIDAE

2 genera, 3 species (plus one reported for Michigan in error)

Cucujus clavipes Fabricius, 1781: Lee and Thomas (2011), Andrews (1929), Hubbard and Schwarz (1878), MSU-ARC      

Pediacus fuscus Erichson, 1845: Thomas (2004), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC      

Pediacus subglaber LeConte, 1854: Thomas (2004); N.A. records for depressus belong here

The following species was reported from Michigan, but we consider it to be a misidentification or other error:

Pediacus depressus (Herbst, 1797): Downie and Arnett (1996), Hubbard and Schwarz (1878); a Palaearctic species that does not occur in N.A., very similar to P. subglaber

This family list was last updated: September 15, 2021