New data on the spider genus Troglohyphantes (Araneae, Linyphiidae) in the Italian Alps, with the description of a new species and a new synonymy

In this paper we describe Troglohyphantes lanai n. sp. from Pennine Alps and the unknown female of T. bonzanoi, from Ligurian Alps. Based on the collection of new material and on the examination of the paratypes, T. delmastroi Pesarini, 2001 is proposed as junior synonym of T. iulianae Brignoli, 1971 (new synonymy). We also provide new faunistic and ecological data on the Italian species of Troglohyphantes, focusing mainly on Central Italian Alps. Phenetic species groups previously proposed in literature for the Italian species have been updated in view of recent literature and new findings. Pesarini's complexes of species are used to map the species distribution in the Italian Alps.