pectinatus Macfie, 1939b: 195 (female). Type locality: Brazil, Santa Catarina, Nova Teutônia. LT F (BMNH). Distr.- Guadeloupe, Brazil (Santa Catarina), Argentina (Misiones: Aristóbulo del Valle, arroyo Cuña Pirú, 27°05'16.30"S, 54°57'8.64"W. Corrientes: Esteros del Iberá, Colonia Pellegrini, 28°32'17.58"S, 57°10'56.86"W; Esteros del Iberá, Estancia San Nicolás, casco, 28º07'41.0''S, 57º26'03.5''W). Refs.: Spinelli et al., 2015a: 45.
Diagnosis. Only Neotropical species of Atrichopogon (Psilokempia) with the following combination of characters: dark brown species, scutum without pattern of pigmentation. Female: palpal segment 5 with blunt tip, mandible with 14–15 teeth; posterior portion of sternite 7 without cuticular extensions, sternite 8 broad with 4–5 pairs of setae and membrane with V-shaped fringe of posteriorly directed spines. Male: gonocoxite stout; distal 1/4 of gonostylus gently excavated; lateral margins of parameres folded ventrally; anterodorsal lobes short, extending to midlength of parameres main body, and basal arms of aedeagus reduced.