Abstract
The old genus Libitia Simon, 1879 of small Andean harvestmen is revisited. The monotypic genus Libitiella Roewer, 1947 is herein considered a junior subjective synonym of Libitia. Accordingly, Libitiella bipunctata (Sørensen, 1932) is restored to the combination Libitia bipunctata. The species Libitia cordata and Libitia bipunctata comb. nov. are redescribed and the new species Libitia gandalf sp. nov. and Libitia iguaque sp. nov. are herein described from Cordillera Oriental of Colombian Andes (Chingaza Natural Park and Iguaque Natural Park, respectively). The species Gonyleptes multimaculatus Wood 1869, currently under the synonymy of L. cordata, is revalidated and transferred to Paecilaemella Roewer, 1925 forming Paecilaemella multimaculata comb. nov., and the species Cynorta itacoaiensis H. Soares, 1970 is herein considered a junior subjective synonym of it. In addition, the second current species of the genus, Libitia fusca (Simon, 1879), is transferred to Metalibitia. Libitia is diagnosed based in genital and external morphology, an identification key of the four species and distribution maps are offered.
Highlights
The Northern Andes have a high topographic complexity, recognized as a biodiversity hotspot (Myers et al 2000)
Cosmetid harvestmen of Andes have received better attention in the last few years in Bolivia (Monteiro & Pinto-da-Rocha 2015) and Colombia (García & Kury 2017; Medrano & Kury 2017)
MEDRANO M. et al, Revision of Andean genus Libitia Remarks We tentatively propose the new combination based on the external morphology of the male type (MNHN) by the following features: (1) outline of dorsal scutum gamma-type; (2) eyes poorly spaced and ocularium without depression
Summary
The Northern Andes have a high topographic complexity, recognized as a biodiversity hotspot (Myers et al 2000). Some years later, Simon (1879: 216) created the genus Libitia for cosmetids with short legs, unarmed abdomen and five segments in legs I, III and IV, including C. cordatus and the new species Libitia fusca Simon, 1879. He mentioned the singularly inflated basitarsomeres of posterior legs in L. cordata and lacking in L. fusca
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