FIGURES 1–4 in Liphanthus Reed, 1894 (Hymenoptera, Andrenidae, Protandrenini): Two new Argentine species and keys to the species of the subgenera Liphanthus s. str. and Melaliphanthus Ruz & Toro, 1983

FIGURES 1–4. Liphanthus (Melaliphanthus) inornatus n. sp. 1, head of male (holotype) in frontal view. 2, male (holotype) in lateral view. 3, head of female (allotype) in frontal view. 4, female (allotype) in lateral view. Scale bar= 1 (mm).