Outer view of the male hind leg (7) and detail of the subapical projection (indicated by an arrow) above the tibial spurs in anterior (8, 10, 12) and lateral views (9, 11, 13) Red box in Fig. 7 indicates detailed area in subsequent figures 7–9 E. coerulescens (Mexico: Nuevo León, ECO-TAP-E-104040) 10, 11 E. oliveri (paratype. Mexico: Guerrero, EMEC 1069134) 12, 13 E. simillima (paratype. Mexico: Chihuahua, KUNHM-ENT 0504566).

  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. https://doi.org/10.3897/jhr.55.12209