1	Pronotum with posterior angles not produced, central area of posterior margin extending beyond lateral extents of posterior margin; body widest behind elytral humeri; antennae reaching anterior quarter of lateral margin of pronotum; pseudopleuron with punctures equal density on all surface, separated by two to four puncture diameters from which emerge decumbent setae (Fig. 4A)	Praocis (Mesopraocis) pilula Laporte
–	Pronotum with posterior angles produced, central area of posterior margin not extending beyond lateral extents of posterior margin; body widest at prothorax; antennae reaching anterior third of lateral margin of pronotum; pseudopleuron with punctures separated by three to six puncture diameters on lower surface and separated by one to two puncture diameters on upper surface from which emerge erect setae	2
2	Upper margin of eyes lacking supraocular groove; antennomere 9 wider than long and equal length to 10; first metatarsomere twice as long as metatarsomeres 2–3 combined (Fig. 4B)	Praocis (Mesopraocis) calderana Kulzer
–	Eyes with supraocular groove, starting in the middle of upper margin of eye and ending on upper postgenal margin; antennomere 9 longer than wide or equal length than wide, and longer than 10; first metatarsomere 1.4–1.6 × longer than metatarsomeres 2–3 combined	3
3	Frons, epicanthus and elytra with impressed punctures, frons and epicanthus with puncture depth the same size than diameter, elytra with puncture depth larger than diameter; antennomere 9 longer than 11 and narrow than 10, antennomere 11 wider than long; posterior ¾ of epipleuron with a row of punctures the same diameter and depth than punctures on pseudopleuron (Fig. 4C)	Praocis (Mesopraocis) nitens Kulzer
–	Frons, epicanthus and elytra with shallow punctures, frons and epicanthus with puncture depth smaller than diameter, elytra with puncture depth the same size than diameter; antennomere 9 of equal length than 11 and of equal width to 10, antennomere 11 longer than wide; posterior ¾ of epipleuron with a row of punctures smaller diameter and depth than punctures on pseudopleuron (Fig. 4D)	Praocis (Mesopraocis) arenicola sp. nov.