Abstract
Two new Archilopsis species are described: Archilopsis marifuga sp.n. and Archilopsis arenaria sp.n.; Archilopsis unipunctata (Fabricius, 1826) and Archilopsis spinosa (Jensen, 1878) are redescribed. The latter taxon is re-established. The descriptions are based on morphological and karyological data. The four species of the genus can unequivocally be recognized by the morphology of the cirrus and the presence or absence of a stylet.
The genus Archilopsis is regarded as a monophyletic group with at least two autapomorphies. The relationship between the four species is discussed and a cladogram for the genus proposed. The existence of two sistertaxa (each with two species) is recognized.
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Martens, P.M., Curini-Galletti, M.C. & Puccinelli, I. On the morphology and karyology of the genus Archilopsis (Meixner) (Platyhelminthes, Proseriata). Hydrobiologia 175, 237–256 (1989). https://doi.org/10.1007/BF00006094
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DOI: https://doi.org/10.1007/BF00006094