- Omalium meximontanum Thayer, 2003

Paratype: 1 ♀. MEXICO: Jalisco, San Gabriel, Nevado de Colima, N Slope, near Las Viboras microwave station, 2900 m, 19°37.26' N, 103°36.88' W, 08–22/IX/1999. Col. A. Newton y M. Thayer, flight intercept trap; FMHD #99-366, 1022, Abies - Quercus - Pinus Forest. Field Museum Nat. Hist.

Conservation status: Complete, well-preserved.

Paratypes: 1 ♂, 2 ♀. MEXICO: Oaxaca, 16mi N Ixtlán de J., 9400', 23–29/VII/1971. Col. A. Newton, human dung trap 315; oak-fir forest.

Conservation status: Complete, well-preserved.