Genus: Peritrox

• Description: Elongate-oblong, small to moderate-sized, ranging from about 10–15 mm in length. Integument generally dark brown or black with whitish, ferrugineous, black, and ochraceous pubescence. Head with frons elongate, about as wide as width of 1 1/2 lower eye lobes. Eyes with lower lobes large, oblong. Genae subquadrate to elongate, distinctly shorter than lower eye lobes. Antennal tubercles prominent, narrowly separated, contiguous at base; tubercles armed with short, blunt horn; antennae distinctly longer than overall body length, as much as twice as long; scape gradually expanded to apex, about as long or shorter than antennomere IV; antennomere III nearly straight or curved, longer than scape and antennomere IV; antennomere XI shorter than X (females) or longer than X (males). Pronotum transverse, roughly conical, wider at base, with or without lateral tubercles. Elytra with sides roughly parallel; elytral apices individually rounded; elytra generally uniform in coloration or speckled; base of elytra with two prominent tubercles at humeri. Basal 1/3 of elytra with sparse to dense punctation, surface finely punctate, coarsely punctate, or granulate-punctate. Procoxae without projection or with an obtuse tubercle. Mesosternal process with apex subtruncate to deeply emarginate. Metafemora moderate to short in length, about 1/3–1/4 as long as elytra.


• The combination of the following characters will help to distinguish this genus: large eyes; narrowly separated antennal tubercles, contiguous at base; scape gradually expanded to apex; roughly conical pronotum; and elytra with sides roughly parallel.


• Similar genus/genera: superficially resembles Cordites, Cylicasta, and Pericasta.

• South America (Argentina, Bolivia, Brazil, Ecuador, French Guiana, Paraguay, Peru, Uruguay)

• Caesalpiniaceae (Parkinsonia aculeata)

• Unknown

	The genus Peritrox currently contains five species:
		Peritrox denticollis Bates, 1865 [type specimen]
		Peritrox marcelae Nearns & Tavakilian, 2012 [type specimen, ♂]
		Peritrox nigromaculata Aurivillius, 1920 [type specimen, ♂]
		Peritrox perbra Dillon & Dillon, 1945 [♂ specimen]
		Peritrox perbra Dillon & Dillon, 1945 [allotype specimen, ♀]
		Peritrox vermiculatus Dillon & Dillon, 1945

• None

• Aurivillius, 1920
• Bates, 1880-1886
• Dillon & Dillon, 1945
• Monné, 2005
• Bezark & Monné, 2013
• Nearns & Tavakilian, 2012