New species Koorchaloma and Ciliochorella from xeric forests in Argentina

Two new species, Koorchaloma scutiae and Ciliochorella buxifoliae, isolated from leaf litter of Scutia buxifolia forest are described, illustrated, discussed, and compared with similar species. The specimens were collected in Magdalena, Buenos Aires province, Argentina. The type specimens are deposited in LPS. Keys are provided to all species of both genera.