Iberina microphthalma (Snazell & Duffey, 1980) [příčnatka drobnooká]

The spider genus Iberina has been reviewed and an updated description of the genus is presented. A key to the genera of the subfamily Hahniinae and to the species of Iberina is given. The genus Iberina now includes five species. The following new synonymy is proposed: Iberina caeca Georgescu & Sarbu, 1992 = Iberina microphthalma (Snazell & Duffey, 1980) new synonymy. Iberina ljovuschkini Pichka, 1965 is only known from females. It is considered to be a species inquirenda and its name declared a nomen dubium.

Spiders occurring in soils and fissured rocks were investigated using pipe traps. Four microphthalmic species, namely Iberina microphthalma, Porrhomma egeria, Porrhomma microps and Porrhomma cambridgei were collected. Iberina microphthalma is reported from the Czech Republic for the first time. The importance of collecting material by complex pipe traps (consisting of a perforated pipe and a set of removable cups) to record the depth distribution of spiders in subterranean habitats is stressed. The importance of the soil and fissure network formed by sandy marlite bedrock and of alluvial soils for the life of subterranean spiders is documented.