Figure 2 from: Monckton SK (2016) A revision of Chilicola (Heteroediscelis), a subgenus of xeromelissine bees (Hymenoptera, Colletidae) endemic to Chile: taxonomy, phylogeny, and biogeography, with descriptions of eight new species. ZooKeys 591: 1-144. https://doi.org/10.3897/zookeys.591.7731

Figure 2 - Male: A Chilicola travesia, apical surface of S1 process longitudinally concave throughout, scale bar 0.15 mm B Chilicola travesia, frontal view, MOC equal to or greater than width of head, scale bar 0.5 mm C Chilicola erithropoda, apical surface of S1 process with anteromedial convexity, scale bar 0.15 mm D Chilicola erithropoda, frontal view, MOC less than width of head, scale bar 0.5 mm.