Notes on Geraecormobius clavifemur (Mello-Leitão, 1927) and description of Geraecormobius reitzi n. sp. (Arachnida: Opiliones: Gonyleptidae)

Abstract

Four nominal southern Brazilian species of Gonyleptinae are studied: Geraecormobius clavifemur (Mello-Leit„o, 1927), Mischonyx meridionalis (Mello-Leit„o, 1927), Ariaeus tuberculatus S¡¥rensen, 1932 and a new species of Geraecormobius Holmberg, 1887. Mischonyx meridionalis and Ariaeus tuberculatus are herein considered junior subjective synonyms of Geraecormobius clavifemur. Ariaeus S¡¥rensen, 1932 is herein considered a junior subjective synonym of Geraecormobius. New records are recorded for G. clavifemur, hitherto known only from the type locality, Blumenau, Santa Catarina state, Brazil. Geraecormobius reitzi n. sp., is described from Santa Catarina state, Brazil and considered closest to G. clavifemur, based upon general aspects of external morphology. The two species occur at different altitudes. G. clavifemur inhabits the lower part of the Atlantic Plateau of Santa Catarina at 0 to 300 m, whereas Geraecormobius reitzi n. sp. occurs at higher elevations.