Acanthostichus femoralis Kusnezov, 1962a: 126, figs. 2, 3b (w.) ARGENTINA (Formosa). Neotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Argentina: W Formosa, Estación Ingeniero Juárez, vii.1958, no. 10423 (N. Kusnezov). Primary type depository: IMLT. Secondary type information: Secondary type material: 41 paratype workers. Secondary type locality: same as for holotype but nos 10422, 10429, 10449. Secondary type depositories: IMLT, MACN, MCZC, MZSP. Secondary type specimen: MZSP0082251. Type notes: 1) MacKay, 1996: 151, points out that the type material is dated viii.1958, not vii.1958 as printed. 2) Ulysséa et al., 2025: Table S1, cite 2 paratype workers in MZSP.