Ceratina (Zadontomerus) mikmaqi Rehan & Sheffield 2011

Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, Zootaxa 4352 (1), pp. 1-160 : 66

Ceratina (Zadontomerus) mikmaqi Rehan & Sheffield 2011

County records: Allegan, Antrim, Barry, Berrien, Branch, Calhoun, Cass, Charlevoix, Cheboygan, Chippewa, Clare, Clinton, Delta, Dickinson, Eaton, Gratiot, Hillsdale, Huron, Ingham, Ionia, Jackson, Kalamazoo, Kalkaska, Lake, Lapeer, Leelanau, Lenawee, Marquette, Mecosta, Montcalm, Montmorency, Muskegon, Newaygo, Oakland, Oceana, Osceola, Ottawa, Roscommon, Saginaw, Shiawassee, St. Clair, St. Joseph, Van Buren, Washtenaw, Wayne, Wexford.

Notes. Ceratina mikmaqi was described recently based on material from Nova Scotia, Ontario, Maryland, Nebraska, New York, Wisconsin and Kentucky ( Rehan & Sheffield 2011). Since then it has proven to be a common and widely distributed species ( Zarrillo et al. 2016). The first published record for Michigan came several years after the original description ( Carson et al. 2016). Males of C. mikmaqi are very similar to C. dupla and would have been treated as this species in earlier works (e.g., Daly 1973, see above). Males differ from C. dupla by the sparse mesoscutal punctation, ecarinate hind tibia at ventral midlength, and wider T7 apical lamella. Females are similar to C. calcarata in the sparse mesoscutal punctation, but can be distinguished from that species by the sparse pubescence of the metasomal sterna. We also reconfirm the presence of C. calcarata and C. dupla in Michigan. The males of C. calcarata are distinctive, so Daly’s identifications of these remain valid. As Ceratina mikmaqi has proven to be so widespread and abundant, we do not list specific records, but a list of counties is presented below.Nesting in Ontario described by Vickruck et al. (2011).