zonogaster Ingram & Macfie, 1931: 168 (male). Type locality: Chile, Puerto Varas. HT M (BMNH). Distr.- Chile, Argentina (Neuquén: PN Nahuel Huapi, arroyo Neuquenco, 40º28'48.3''S, 71º36'44.1''W, 809 m; PN Nahuel Huapi, arroyo Blanco, Villa Traful, 40º39'3.4''S 71º24'45.8''W, 822 m; PN Nahuel Huapi, Peninsula Quetrihue, laguna Patagua, 40°51'5.7' S, 71°37'18.3''W, 817 m. Río Negro: Estación Biológica Puerto Blest, 41º01'34.4''S 71º48'55.7''W, 791 m). First Argentina records.

Diagnosis. Species of brown coloration; segment 3 of the maxillary palpus longer than the combined length of segments 4 and 5, slightly widened at the base; metathoracic tarsal ratio 0.6; whitish halters; banded abdomen; Basically connected parameters by a U-inverted sclerite, slightly curved posterior processes, filamentous apices.