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.

The subfamily Apioninae is divided into tribes very differently by Bouchard (2011) than in Arnett et al. (2002).  BugGuide continues to follow Arnett et al. (2002), but we have opted to follow the newer classification here.  The former genus Apion has been divided into many genera, and most North American species have been placed in the new genera.  We have not been able to find a current name for Apion (Certapion) parallelum.  Thus, in our list it remains as Apion parallelum.

BRENTIDAE

3 subfamilies, 6 tribes, 13 genera, 23 species

Subfamily Apioninae

        Tribe Apionini

Alocentron attenuatum (Smith, 1884): O'Brien and Wibmer (1982)      

Coelocephalapion carinatum (Smith, 1884): O'Brien and Wibmer (1982), Downie and Arnett (1996), MCZ      

Coelocephalapion decoloratum (Smith, 1884): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Coelocephalapion emaciipes (Fall, 1898): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Eutrichapion huron (Fall, 1898): O'Brien and Wibmer (1982), Downie and Arnett (1996), MCZ, SI:NMNH      

Apion parallelum Smith, 1884: O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC; current genus unknown

Fallapion finitimum (Fall, 1898): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Fallapion melanarium (Gerstaecker, 1854): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Fallapion obsoletum (Smith, 1884): O'Brien and Wibmer (1982), Downie and Arnett (1996), MCZ      

Fallapion pensylvanicum (Boheman, 1839): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Fallapion robustum (Smith, 1884): O'Brien and Wibmer (1982), Downie and Arnett (1996)      

        Tribe Aplemonini

Perapion curtirostre (Germar, 1817): Haack and Ruesink (2020), BugGuide      

Perapion punctinasum (Smith, 1884): Ruesink and Parsons (2021), MSU-ARC; ID of MSU-ARC specimens by Green

Podapion gallicola Riley, 1883: O'Brien and Wibmer (1982), Wilson (1965), MSU-ARC      

        Tribe Ixapiini

Neapion harpax (Kissinger, 1968): O'Brien and Wibmer (1982)      

Neapion herculanum (Smith, 1884): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

        Tribe Malvapiini

Rhopalapion longirostre (Olivier, 1807): Ruesink and Parsons (2021), MSU-ARC      

        Tribe Oxystomatini

Betulapion simile walshii (Smith, 1884): O'Brien and Wibmer (1982), MSU-ARC      

Trichapion patruele (Smith, 1884): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Trichapion reconditum (Gyllenhal, 1839): O'Brien and Wibmer (1982), Downie and Arnett (1996), MSU-ARC      

Trichapion rostrum (Say, 1826): O'Brien and Wibmer (1982), Downie and Arnett (1996), Hubbard and Schwarz (1878)      

Subfamily Brentinae

        Tribe Brentini

Arrhenodes minutus (Drury, 1773): Downie and Arnett (1996), Hubbard and Schwarz (1878), BugGuide, MSU-ARC      

Subfamily Ithycerinae

Ithycerus noveboracensis (Forster, 1771): O'Brien (1994), Downie and Arnett (1996), Hubbard and Schwarz (1878), MSU-ARC      

This family list was last updated: September 14, 2021