Ventral views of S6 of female Nomadinae. a, Holcopasites illinoiensis (Robertson); b, Neopasites fulviventris (Cresson); c, Townsendiella californica Michener; d, Hexepeolus rhodogyne Linsley and Michener; e, Nomada (Holonomada) sp., f, Brachynomada (Melanomada) melanantha (Linsley); g, Neolarra vigilans (Cockerell); h, Neolarra verbesinae (Cockerell); i, Oreopasites vanduzeei Cockerell; j, Caenoprosopis crabronina Holmberg. a-f and i, from Linsley and Michener, 1939; g and h, from Roig-Alsina, 1991b; j, from Roig-Alsina, 1987. (source: Michener, 2007)