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.

CORYLOPHIDAE

1 subfamilies, 5 tribes, 6 genera, 16 species

Subfamily Corylophinae

Tribe Orthoperini

Orthoperus glaber (LeConte, 1852): Ruesink and Parsons (2022), Hubbard and Schwarz (1878), MSU-ARC; a poorly known sp., described from the middle & southern states

Orthoperus scutellaris LeConte, 1878: Ruesink and Parsons (2022), Hubbard and Schwarz (1878), MSU-ARC      

??Orthoperus suturalis LeConte, 1878: Downie and Arnett (1996); described from FL, MI record needs confirmation

Tribe Parmulini

Arthrolips decolor (LeConte, 1852): Ruesink and Parsons (2022), MSU-ARC; MSU-ARC has one Driesbach specimen from Midland, Co.

Arthrolips misella (LeConte, 1852): Ruesink and Parsons (2022), Hubbard and Schwarz (1878), MSU-ARC; MSU-ARC has 4 very old specimens labeled simple Detroit, Mich.

Clypastraea fasciata (Say, 1827): Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC      

??Clypastraea fusca (Harold, 1875): Downie and Arnett (1996); a northern sp., MI record needs confirmation.

Clypastraea lugubris (LeConte, 1852): Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC      

Clypastraea lunata (LeConte, 1852): Haack and Ruesink (2020), Hubbard and Schwarz (1878), MSU-ARC      

?Clypastraea obscura (LeConte, 1852): Hubbard and Schwarz (1878); a poorly known sp., described from the north shore of Lake Superior, MI record needs confirmation

Clypastraea ornata (Casey, 1900): Ruesink and Parsons (2022), MSU-ARC; 1 specimen in MSU-ARC from Detroit

Tribe Peltinodini

Holopsis marginicollis (LeConte, 1852): Hubbard and Schwarz (1878)      

Tribe Rypobiini

Gloeosoma hesperum (Casey, 1900): Ruesink and Parsons (2022), MSU-ARC; 1 specimen in MSU-ARC from Detroit

Tribe Sericoderini

?Sericoderus flavidus LeConte, 1852: Hubbard and Schwarz (1878); described from NY & "Lake Superior".

Sericoderus lateralis (Gyllenhal, 1827): Haack and Ruesink (2020), Downie and Arnett (1996), MSU-ARC      

??Sericoderus obscurus LeConte, 1852: Downie and Arnett (1996), Hubbard and Schwarz (1878); described from one NY specimen, MI record needs confirmation

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

Gloeosoma truncatus (LeConte, 1852): Hubbard and Schwarz (1878) as Corylophus truncatus Lec.; an east coast sp., prob. refers to G. hesperum

This family list was last updated: April 14, 2022