Detail of the subapical projection (indicated by an arrow) above the spurs of the male metatibia in anterior (14, 16, 18) and lateral views (15, 17, 19). 14, 15 E. barthelli (paratype. Mexico: Jalisco, Ajijic, KUNHM-ENT 0504535); 16, 17 E. engeli (paratype, KUNHM-ENT 0504531) 18, 19 E. micheneri (paratype. Mexico: Jalisco, Talpa, KUNHM-ENT 1121712).

  Part of: Gonzalez VH, Griswold T, Simões M (2017) On the identity of the adventive species of Eufriesea Cockerell in the USA: systematics and potential distribution of the coerulescens species group (Hymenoptera, Apidae). Journal of Hymenoptera Research 55: 55-102.