Acanthoscelides serenus (Sharp, 1885) . Combination confirmed.

Bruchus serenus Sharp, 1885: p. 455 . From labels: “San Joaquin, / Vera Paz. / Champion” [Guatemala]. Holotype male deposited in the BMNH. There is a “ Lectotype ” label affixed to this specimen. However, the original publication states “Another species represented by a single example" (p. 455); this is therefore a holotype.

Bruchus serenus: Pic (1913), p. 49 (catalog); Fery (2013), p. 45 (catalog).

Acanthoscelides serenus: Blackwelder (1946), p. 761 (catalog, comb. nov.); Wilcox (1975), p. 7 (catalog); Johnson & Kingsolver (1981), p. 416 (catalog); Udayagiri & Wadhi (1989), p. 63 (catalog).