ingrami Cazorla & Spinelli, 2012a: 90 (male, female). Type locality: Argentina, Neuquén, Parque Nacional Nahuel Huapi, lago Falkner 40°26'12.2''S, 71°31'44.9''W, 930 m. HT M (MLPA). Distr.- Argentina (Neuquén: type locality; PN Nahuel Huapi, río Pichitraful, 40°42' 46''S, 71°47'23' W. Río Negro: PN Nahuel Huapi, río Frias, 41°05'14.8''S, 71°48'20.9''W, 765 m; PN Nahuel Huapi, 6 km W southern shore lago Mascardi, 41°21'1.70"S, 71°35'58.48"W; PN Nahuel Huapi, río Manso, 41°14'28.4''S, 71°44'12.6''W, 837 m; PN Nahuel Huapi, río Manso medio, La Cantera, 41°21'16''S, 71°42'27.3''W, 764 m; PN Nahuel Huapi, arroyo Martin, 41°31' 01.3''S, 71°37'29.4'' W). Rafs.: Cazorla & Spinelli, 2012a: 90.



Diagnosis: the only Patagonian species of Stilobezzia (Acanthohelea) in which males have distal portion of parameres bifid, bifurcating slightly distad of swollen midportion, with the inner prong slightly shorter than the external prong; gonocoxites connected by a tranverse process overlapping distal margin of aedeagus. Female with sternite 8 with anterior margin concave, the posteromedian excavation heavily sclerotized, V-shaped, with the sclerotization continued anterad to 1/2 of sternite 8 length.