The millipede genus Strongylosoma in the Caucasus (Diplopoda: Polydesmida, Paradoxosomatidae)

摘要

Only two species of Strongylosoma Brandt, 1833 inhabit the Caucasus: Strongylosoma kordylamythrum Attems, 1898 and S. lenkoranum Attems, 1898. Both are quite distinct morphologically, their main diagnostic features are in the structure of the gonopod telopodite and shape of the ventral hump on male femur 3. The former species occurs in most of the Caucasus except for the region's eastern parts where only the latter species occurs. Parapatry is recorded only in Mountainous Karabakh and Hyrcania (within both southeastern Azerbaijan and northwestern Iran), but even there these species are strictly allopatric, in never being found together. Their distributions are refined and mapped, based both on records in the literature and an abundance of new samples.