FIGURES 19–27. Rhophitulus xenopalpus n in Three new bee species of Rhophitulus Ducke (Hymenoptera, Apidae, Protandrenini) from Argentina and Brazil

FIGURES 19–27. Rhophitulus xenopalpus n. sp.: 19, female (holotype), head in frontal view. 20, female (holotype), lateral view. 21, female (holotype), mesosoma in dorsal view. 22, male, head in frontal view. 23, male, lateral view. 24, male, mesosoma in dorsal view. 25, female, detail of the unique labial palpus. 26, female, detail of labral plate. 27, female, metasoma in dorsal view.