Trogulus martensi Chemini, 1983 im Raum Basel (Arachnida, Opiliones, Trogulidae)

Trogulus martensi Chemini, 1983, formerly thought to be endemic in northern Italy, is recorded from several places near Basle (first records in Switzerland and France). The species is close to T. galasensis Avram, 1971. Important differences to the syntopic T. closanicus Avram, 1971 (first published record in Fance) and the sympatric T. nepaeformis (Scopoli, 1763) are shown and discussed. Additional biometric, autecological and phenological data of Trogulus martensi are presented.