A Revision of Chilicola (Heteroediscelis), A Subgenus Endemic to Chile

The bee subgenus Chilicola (Heteroediscelis) Toro & Moldenke, 1979 (Colletidae: Xeromelissinae) is revised. Seven new species are described: Chilicola (Heteroediscelis) charizard Monckton sp. nov., Chilicola (Heteroediscelis) curvapeligrosa Monckton sp. nov., Chilicola (Heteroediscelis) guanicoe Monckton sp. nov., Chilicola (Heteroediscelis) lickana Monckton sp. nov., Chilicola (Heteroediscelis) mayu Monckton sp. nov., Chilicola (Heteroediscelis) packeri Monckton sp. nov., and Chilicola (Heteroediscelis) randolphi Monckton sp. nov. Nine of the ten existing species are redescribed and Chilicola (Heteroediscelis) valparaiso Toro & Moldenke, 1979 syn. nov. is treated as a junior synonym of Chilicola (Heteroediscelis) mantagua Toro & Moldenke, 1979. Keys to species for males and females are provided, along with habitus images, images of male terminalia, and distribution maps for each species. Results of phylogenetic analyses are presented, based upon 61 morphological characters and CO1 barcode sequences. Monophyly of the subgenus is supported, and groupings within it are briefly discussed in the context of geographic distributions.