Description: Elongate-ovate, small to large-sized, ranging from about 9–21 mm in length. Integument generally dark brown or black with whitish, ferrugineous, brown, black, and ochraceous pubescence. Head with frons elongate, about as wide as width of 1 1/2 lower eye lobes. Eyes with lower lobes ovate-oblong. Genae elongate, about as tall or distinctly shorter than lower eye lobes. Antennal tubercles prominent, moderately to narrowly separated; tubercles not armed at apex or armed with a small projection, or with a short, blunt horn, or with a moderately long, blunt horn; antennae shorter (females) than overall body length, or as much as twice as long (males); scape clavate, about as long or longer than antennomere IV; antennomere III sinuate, longer than scape and antennomere IV. Pronotum transverse, conical, distinctly wider at base, without lateral tubercles. Elytra with sides attenuate; elytral apices individually rounded; elytra generally uniform in coloration or speckled, or with distinct maculae; base of elytra with two prominent tubercles at humeri. Basal 1/3 of elytra with moderate to dense punctation, surface finely punctate, coarsely punctate, or granulate-punctate. Procoxae without projection or with distinct, curved hook. Mesosternal process with apex feebly to deeply emarginate. Metafemora long to moderate in length, about 1/2–1/3 as long as elytra.
The combination of the following characters will help to distinguish this genus: moderately ovate form; sinuate antennomere III; distinctly conical pronotum; base of elytra with two prominent tubercles at humeri; and elytra with sides attenuate.
Similar genus/genera: strongly resembles Hypsioma.
Geographic Distribution
Central America (all countries)
South America (Bolivia, Brazil, Colombia, Ecuador, French Guiana, Peru, Trinidad, Venezuela)
Host Plants/Trees
Papilionaceae (Lonchocarpus sp.)
Girdling Behavior
Members of this genus are not known to girdle branches (F.T. Hovore, personal communication).
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