Museum material and literature data on Vertigo-species from France and the Iberian Peninsula have been revised and critically evaluated. Distribution maps based on all available data for four, in this area rare and poorly known, species: Vertigo substriata, V. modesta arctica, V. lilijeborgi and V. alpestris are presented. The distribution and ecology of the species in the area are discussed. Two species are restricted to higher altitudes in the Pyrenees: V. modesta arctica (3 localities) and V. lilljeborgi (2 localities - first record for Spain). V. substriata and V. alpestris both have a wider distribution, but are very rare and their occurrences scattered. V. alpestris is restricted to the northern and eastern parts of France, V. substriata occurs also in the Pyrenees and northern Spain and has an isolated occurrence in the south (Sierra Nevada). The total distribution of both species is discussed and North and Middle European is considered a good characterisation of both. Vertigo Baudoni Massot, 1872 is a synonym of V. substriata. Vertigo acheila Servain, 1880 is a synonym of V. pygmaea and not of V. alpestris or V. moulinsiana as previously supposed.
Vertigo modesta arctica