Elongate-oblong, moderate-sized, ranging from about 12–14 mm in length. Integument generally dark brown with whitish, ferrugineous, 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, distinctly shorter than lower eye lobes. Antennal tubercles prominent, moderately separated; 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 1 1/2 times as long; scape clavate, shorter than antennomere IV; antennomere III curved or sinuate, longer than scape and antennomere IV. Pronotum transverse, roughly conical, wider at base, with or without lateral tubercles. Elytra with sides attenuate; elytral apices individually rounded; elytra with distinct maculae; base of elytra with two prominent tubercles at humeri. Basal 1/3 of elytra with dense punctation, surface coarsely punctate. Procoxae without projection. Mesocoxae with distinct tubercle. Mesosternal process with apex subtruncate to feebly 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: moderately large eyes; sinuate antennomere III; roughly conical pronotum; and elytra with sides attenuate.
Superficially resembles Apocoptoma, Lachnia, and Trestonia.
South America (Bolivia, Brazil, Ecuador, Trinidad & Tobago, Peru)
Unknown
Unknown
The genus Leus currently contains one species: L. ramuli (Bates, 1865Bates, 1865:
Bates HW. 1865. Contributions to an insect fauna of the Amazon Valley. Coleoptera: Longicornes. The Annals and Magazine of Natural History 3(15):213–225, 382–394; 3(16):101–113, 167–182, 308–314.).
More species images are available in the Gallery.
Leus Dillon and Dillon, 1946Dillon and Dillon, 1946:
Dillon LS, Dillon ES. 1946. The tribe Onciderini (Coleoptera: Cerambycidae) Part II. Reading, Scientific Publications, Reading Public Museum and Art Gallery, Number 6. 189–413 pp.
subtribe: Onciderina
type species: Leus piperella Dillon and Dillon, 1946Dillon and Dillon, 1946:
Dillon LS, Dillon ES. 1946. The tribe Onciderini (Coleoptera: Cerambycidae) Part II. Reading, Scientific Publications, Reading Public Museum and Art Gallery, Number 6. 189–413 pp. [synonym of Trestonia ramuli Bates, 1865]
Bates (1865)Bates (1865):
Bates HW. 1865. Contributions to an insect fauna of the Amazon Valley. Coleoptera: Longicornes. The Annals and Magazine of Natural History 3(15):213–225, 382–394; 3(16):101–113, 167–182, 308–314., Bezark and Monné (2013)Bezark and Monné (2013):
Bezark LG, Monné MA. 2013. Checklist of the Oxypeltidae, Vesperidae, Disteniidae and Cerambycidae, (Coleoptera) of the Western Hemisphere., Dillon and Dillon (1946)Dillon and Dillon (1946):
Dillon LS, Dillon ES. 1946. The tribe Onciderini (Coleoptera: Cerambycidae) Part II. Reading, Scientific Publications, Reading Public Museum and Art Gallery, Number 6. 189–413 pp., Monné (2005)Monné (2005):
Monné MA. 2005. Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae. Zootaxa. 1023:1–759.
