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.

MELANDRYIDAE

2 subfamilies, 7 tribes, 17 genera, 26 species

Subfamily Melandryinae

Tribe "Incertae sedis"

Enchodes sericea (Haldeman, 1848): Andrews (1916), Hubbard and Schwarz (1878), Ruesink and Parsons (2023), MSU-ARC

Tribe Dircaeini

Dircaea liturata LeConte, 1866: Haack and Ruesink (2020), Andrews (1923), Hatch (1924), Hubbard and Schwarz (1878), MSU-ARC

Phloiotrya fusca (LeConte, 1878): Pollock (2015), LeConte (1878), Hubbard and Schwarz (1878), MSU-ARC; described from Marquette material

Tribe Hypulini

Hypulus simulator Newman, 1838: Hubbard and Schwarz (1878), Ruesink and Parsons (2023), iNaturalist Observations, MSU-ARC

Symphora flavicollis (Haldeman, 1848): Hubbard and Schwarz (1878), Ruesink and Parsons (2023), MSU-ARC

Symphora rugosa (Haldeman, 1848): Ruesink and Parsons (2023), MSU-ARC, CHAS:ENT

Tribe Melandryini

Emmesa connectens Newman, 1838: Andrews (1923), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

Emmesa labiata (Say, 1824): Hubbard and Schwarz (1878), Ruesink and Parsons (2023), MSU-ARC

Melandrya striata Say, 1824: Andrews (1923), Hubbard and Schwarz (1878), BugGuide, MSU-ARC

Phryganophilus collaris LeConte, 1859: Hubbard and Schwarz (1878)

Prothalpia undata LeConte, 1862: Hubbard and Schwarz (1878)

Tribe Orchesiini

Orchesia castanea Melsheimer, 1846: Haack and Ruesink (2020), Leng (1920), Hubbard and Schwarz (1878), MSU-ARC

Orchesia cultriformis Laliberté, 1967: Downie and Arnett (1996), MSU-ARC

Orchesia gracilis Melsheimer, 1846: Ciegler (2014), Hubbard and Schwarz (1878), MSU-ARC

Orchesia ovata Laliberté, 1967: Ciegler (2014), MSU-ARC

Tribe Serropalpini

Serropalpus coxalis Mank, 1939: Mank (1939a), Downie and Arnett (1996), MSU-ARC

Serropalpus obsoletus Haldeman, 1848: Mank (1939a), Downie and Arnett (1996)

Serropalpus substriatus Haldeman, 1848: Mank (1939a), Haack and Ruesink (2020), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

Tribe Xylitini

Rushia longula (LeConte, 1862): Haack and Ruesink (2020), Hubbard and Schwarz (1878), UCRC:ENT

Scotochroa atra LeConte, 1874: Mank (1939b), Hubbard and Schwarz (1878), Downie and Arnett (1996), MSU-ARC

??Scotochroa basalis LeConte, 1874: Andrews (1923), Hubbard and Schwarz (1878), Leng (1920), Downie and Arnett (1996); known only from east & west coastal areas, MI records doubtful

Scotochroa buprestoides (Kirby, 1837): Mank (1939b), Downie and Arnett (1996), MSU-ARC

Spilotus quadripustulatus (Melsheimer, 1846): Hubbard and Schwarz (1878)

Xylita laevigata (Hellenius, 1786): Hubbard and Schwarz (1878), Ruesink and Parsons (2023), MSU-ARC

Tribe Zilorini

??Zilora hispida LeConte, 1866: Hubbard and Schwarz (1878); an uncommon sp., known from New England & Quebec; MI record doubtful

Subfamily Osphyinae

Osphya varians (LeConte, 1866): Ruesink and Parsons (2023), MSU-ARC, TAMU:TAMUIC

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

Subfamily Melandryinae

Tribe Serropalpini

Serropalpus barbatus (Schaller, 1783): Adams (1909), Andrews (1916), Andrews (1923), Hatch (1924); S. barbatus does not occur in NA, prob. these were S. substriatus (according to Mank, 1939a)

This family list was last updated: January 19, 2023