Macrobiotus alvaroi, a new species of eutardigrade (Tardigrada, Macrobiotidae) of the polyopus group from Costa Rica (Central America)

Abstract

Macrobiotus alvaroi sp. n. is a new species from Costa Rica belonging to the polyopus group; it has two macroplacoids and a small microplacoid, eggs with conical processes joined to each other by thin striae forming a reticular design with hexagonal meshes. It differs from the other species of the group in details of the eggs. From some of them it differs also in some characters of the adults.