Eucera (Synhalonia) atriventris (Smith 1854)

County records: Allegan, Berrien, Cass, St. Joseph, Van Buren.

Notes. First recorded from Michigan by Tuell et al. (2009) based on a single specimen. Dozens of specimens captured in blue vane traps during spring in the southwest have been subsequently examined (Gibbs et al. 2017).