Qorimayus, Acosta, 2020

Acosta, Luis E., 2020, Qorimayus, a new genus of relictual, high-altitude harvestmen from western Argentina (Arachnida, Opiliones, Gonyleptidae) reveals trans-Andean phylogenetic links, Zootaxa 4722 (2), pp. 129-156 : 140

Qorimayus gen. nov.

urn:lsid:zoobank.org:act:21EFA2C1-F6F3-4395-84CD-F073E8944261

Parabalta (in part): Ringuelet, 1962: 2; 1978: 258.

Pachyloides (in part): Acosta, 1996a: 8, 10; 2002: 79, 82; Kury 2003: 181.

Type species: Parabalta alticola Ringuelet, 1962 , here designated. Genus monotypic.

Etymology: The generic name combines two Quechua words (qori = gold, and mayu = river, stream), in reference to ‘Río Oro’, the valley in the Famatina range where all collecting sites are located; grammatical gender is masculine.

Distribution: Western Argentina, Sierra de Famatina, in the Río Oro valley between 2450 and 3080 m a.s.l.

Diagnosis: Medium- to large-sized, long-legged Gonyleptidae Pachylinae , of robust habitus. Ocular mound very low, practically unarmed or with very tiny paired grains. Frontal hump in lateral view as high as the ocular mound. Dorsal scutum flat, unarmed and almost smooth; sparse, tiny granules on areas I–IV. Area V with a row of granules. Free tergites I–III and dorsal anal plate unarmed; granulation on free tergites is similar to area V, with increasing size from free tergite I to III. Pedipalp femur armed with a moderate prolateral subapical spine. Leg IV of males: a large diagonal apophysis on coxa; femur sub-straight, armed distally with a few short apophyses; patella with a distinctive forked proventral apophysis. Tarsal formula 6:(8±1):6:6. Penis: distal portion of trunk swollen and curved in lateral view (first dorsad, then ventrad). Stylus bearing heavy spines on its ventral side; it has a diverging VPS, curved dorsad and flabellate-tipped, giving the apical end of the glans a forked appearance.