Genus: Neodillonia

• Description: Elongate-ovate, robust, small to moderate-sized, ranging from about 10–18 mm in length. Integument generally dark brown or black with whitish, brown, and ochraceous pubescence. Head with frons elongate, about as wide as width of 2 1/2 lower eye lobes. Eyes with lower lobes ovate-oblong. Genae elongate, about as tall as lower eye lobes. Antennal tubercles prominent, narrowly separated, contiguous at base; tubercles armed at apex with a small projection, or with a short, blunt horn; antennae about as long as overall body length, or as much as twice as long; scape gradually expanded to apex, longer than antennomere IV; antennomere III nearly straight, about as long as scape and longer than antennomere IV. Pronotum transverse, roughly conical, wider at base, with lateral tubercles. Elytra with sides attenuate; 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 dense punctation, surface granulate-punctate. Procoxae without projection (females) or with small acute projection (males). Mesosternal process with apex deeply emarginate. Metafemora moderate in length, about 1/3 as long as elytra.


• The combination of the following characters will help to distinguish this genus: narrowly separated antennal tubercles, contiguous at base; scape gradually expanded to apex; roughly conical pronotum, with distinct lateral tubercles; and base of elytra with two prominent tubercles at humeri.


• Similar genus/genera: superficially resembles Euthima, Hypsioma, and Jamesia.

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

• Asteraceae (Baccharis dracunculifolia, B. tandilensis, Grindelia buphthalmoides, Tessaria absinthioides); Malvaceae (Abutilon pauciflorum, Sphaeralcea bonariensis); Mimosaceae (Acacia caven); Solanaceae (Cestrum parqui)

• Unknown

	The genus Neodillonia currently contains two species:
		Neodillonia albisparsa (Germar, 1824) [♀ specimen]
		Neodillonia albisparsa (Germar, 1824) [=C. adspersa type specimen, ♂]
		Neodillonia waltersi Nearns & Swift, 2011 [holotype specimen, ♀]

• The type species of this genus was originally described in the genus Trachysomus; the genus Dillonia was renamed Neodillonia; the genus Clytemnestra was synonymized with Neodillonia.

• Dillon & Dillon, 1945
• Germar, 1824
• Monné, 2005
• Bezark & Monné, 2013
• Nearns & Swift, 2011