inacayali Spinelli & Marino, in Spinelli et al., 2006: 309 (male, female). Type locality, Argentina, Chubut, 16 km SE Paso del Sapo, 42°50'33.49"S, 69°18'34.44"W. HT M (MLPA). Distr.: Argentina (Chubut: type locality. Río Negro: El Bolsón, 41°57'53.72"S, 71°32'7.22"W). Refs.: Spinelli et al., 2006: 309.
NEW RECORD:
Río Negro: laguna Los Juncos, 41º03'33.8''S, 71º00'10''W, 908 m.
Diagnosis. The only species of Atrichopogon from Patagonia without secondary sexual dimorphism; ommatidia without interfacet spicules; maxillary palpus darkish at apex, fifth segment rounded; scutum with pattern of pigmentation; wing macrotrichiae in apical portion of cells r3, m1 and a few in cell m2; aedeagal-parameral complex broad, posterodorsal T-shaped projection tapering to cap-like process.