EN
Genus Arrunsithiana and nine species are described as new: Grandiellina tacjannae from Brazil, Argentina, G. rogeri from Peru, G. longini from Bolivia, G. marinae from Mexico, G. soniae from Colombia, Peru, Ecuador, Mexico, Arrunsithiana artemoni from Ecuador, A. erinnae from Ecuador, A. ilosi from Colombia, A. battosi from Bolivia, Peru, Brazil, Ecuador. Redescription of the genus Grandiellina Fain is given.