Amblycerus planifemur (Chevrolat, 1877) . Combination confirmed.

Spermophagus planifemur Chevrolat, 1877: p. CXXX. From labels: " Mexico / Melly" [Mexico]. Syntype male deposited in the NHRS.

Spermophagus planifemur: Sharp (1885), p. 503 (mentioned); Pic (1913), p. 60 (catalog).

Amblycerus planifemur: Blackwelder (1946), p. 763 (catalog, comb. nov.); Wilcox (1975), p. 2 (catalog); Johnson & Kingsolver (1981), p. 410 (catalog); Udayagiri & Wadhi (1989), p. 13 (catalog); Romero-Nápoles & Johnson (2004), p. 616 (catalog).