Chiquitano, Santos-Silva & Galileo & Wappes, 2017

Santos-Silva, Antonio, Galileo, Maria Helena M. & Wappes, James E., 2017, Descriptions, notes and reassignments in Neoibidionini (Coleoptera: Cerambycidae: Cerambycinae) with a new genus, three new species and keys to species of Brechmoidion Martins, 1969, Compsibidion Thomson, 1864 and Rhysium Pascoe, 1866, Insecta Mundi 2017 (560), pp. 1-21 : 2

Chiquitano gen. nov.

Type species: Chiquitanovolcanesensis sp. nov.

Etymology. Chiquitano : a native ethnic people living in Santa Cruz Department, Bolivia, where the specimens of the type species were collected. Masculine gender.

Diagnosis. Male meso- and metatibiae cylindrical, tumid and not laterally carinate.

Description. Head not notably constricted behind eyes. Eyes not divided; upper eye lobes with 3–4 rows of ommatidia. Antennal tubercles separated. Antennae 11-segmented and surpassing elytral apex in both sexes; scape subcylindrical, slightly widened toward apex; antennomeres III–XI filiform, not carinate; basal antennomeres in male not distinctly tumid; antennomere III about 1.3 times longer than IV and 1.1 times longer than V. Prothorax cylindrical, about 1.4 times longer than wide in both sexes. Pronotum not microsculptured, with 5 moderately distinct gibbosities, not striate, nearly entirely pubescent. Procoxal cavities slightly open behind. Prosternum entirely pubescent in basal half, not forming V-shaped area. Elytra elongate, parallel-sided, apex subtruncate, without spines, pubescent, with long, erect, moderately abundant setae. Profemora fusiform; meso- and metafemora moderately pedunculate-clavate; apex of femora without spine or projection; apex of metafemora distinctly not reaching elytral apex. Tibiae lacking lateral carina in both sexes; male meso- and metatibiae cylindrical, tumid; female meso- and metatibiae not tumid, somewhat flattened laterally. Metatarsomere Iabout as long as II and III together in both sexes.

Remarks. Although the new genus has some features aberrant to Neoibidionina ( Martins and Galileo 2007) , such as female basal antennomeres not carinate, prosternum with pubescence not V-shaped and metatibiae not carinate laterally, it is included here especially because of its cylindrical scape and open procoxal cavities.