Two new species of Macrobiotidae, Macrobiotus szeptyckii (harmsworthi group) and Macrobiotus kazmierskii (hufelandi group) from Argentina

In moss samples collected in Argentina two new species of Eutardigrada were found. One of them, M. szeptyckii sp. n., belongs to the harmsworthi group and differs from other species of the group by some qualitative characters and morphometric traits of adults and eggs. The other new species, M. kazmierskii sp. n., belongs to the hufelandi group and differs from the most similar M. patagonicus by the presence of the first band of teeth in the oral cavity, the presence of a constriction