The millipede genus Cylindroiulus Verhoeff, 1894 in north-west Spain and northern Portugal: Recent records and descriptions of four new species (Diplopoda, Julida, Julidae)

Abstract

Recent collections of millipedes from north-west Spain and northern Portugal have yielded 11 species of the genus Cylindroiulus. Four species are described as new (C. anglilectus, C. boreoibericus, C. gregoryi, C. ventanaea), three species are new to Spain –C. britannicus (Verhoeff, 1891), C. fenestratus Read, 1989, C. dahli Demange, 1970– and two are recorded for the Iberian mainland for the first time having previously been found on the Atlantic islands: C. truncorum (Silvestri, 1896) in Portugal and C. dahli in Spain. Notes are given on the relationship between the new species and those previously described, including those endemic to the Madeiran archipelago. A key to species likely to be found in the northwest of the Iberian pensinsula is presented.