Description of raveniola ambardzumyani n. Sp. from armenia (araneae: Nemesiidae)

A diagnosis and illustrated description of Raveniola ambardzumyani n. sp. (♀) from Armenia is provided. The new species belongs to the Raveniola niedermeyeri species group, where it appears to be most closely related to R. niedermeyeri (Brignoli, 1972) itself. Raveniola ambardzumyani n. sp. differs from the latter species in the shape of receptacular branches arising from a narrow common base. The study briefly discusses the relationships and some peculiar characters (including the reduction of the posterior eyes, a triangular apical segment of the posterior lateral spinnerets, and a very specific configuration of the divided three-head spermathecae) of the new species.