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 family used to be included in the Endomychidae.

ANAMORPHIDAE

1 genus, 1 species (plus one reported for Michigan in error)

Symbiotes duryi Blatchley, 1910: Strohecker (1986), Shockley et al. (2009), Downie and Arnett (1996), SI:NMNH

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

Clemmus minor (Crotch, 1873): Hubbard and Schwarz (1878); as Rhymbus minor in the family Endomychidae, a southern sp. that should not occur in MI. Note that the one accepted species in this family was not yet described in 1878.

This family list was last updated: August 31, 2021