Chiquitanovolcanesensis, 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 : 2-4

Chiquitanovolcanesensis sp. nov.

( Fig. 1–6 )

Description. Holotype male. Integument mostly dark brown, except: head and prothorax darker, almost black (dark reddish brown on parts of antennal tubercles, genae and frons); mouthparts yellowish brown; antennae reddish brown; legs brown with reddish-brown areas; elytra with yellow irregular spot near midlength. Pubescence pale yellow, more whitish depending on angle of light source; erect setae golden.

Head. Frons finely, densely, confluently punctate; pubescence distinctly not obscuring integument, especially toward clypeus. Area between antennal tubercles and anterior margin of upper eye lobes finely, abundantly, confluently punctate; pubescence as on frons, slightly denser closer to antennal tubercles. Area between upper eye lobes shallowly, almost indistinctly punctate; pubescence as on frons, but almost absent centrally. Area of vertex closer to prothoracic margin with minute, transverse, abundant striae; pubescence gradually vanishing toward prothoracic margin. Area behind upper eye lobes nearly smooth close to eye, with minute striae as on vertex on area close to prothoracic margin; pubescence gradually sparser toward lower eye lobe in area closer to eye, almost glabrous in area closer to prothorax;. Area behind lower eye lobes nearly smooth close to upper eye lobe, transversely striate toward ventral side (with fine, sparse punctures close to eye). Antennal tubercles finely, sparsely punctate; pubescence gradually denser toward apex. Genae finely, confluently punctate close to eye, smooth close to apex; pubescence sparse close to eye, absent close to apex; with some long, erect setae in pubescent area. Postclypeus with central plate opaque, minutely, densely, transversely striate, interspersed with sparse, fine, shallow punctures; minutely punctate on sides of central plate, smooth laterally; almost glabrous on central plate, pubescent on sides of central plate, glabrous laterally; with one long, erect seta in each pubescent area. Labrum coplanar with anteclypeus on base, inclined in distal area (margin between these two regions concave); almost glabrous in basal area, with some long setae directed forward in inclined area, primarily on sides. Distance between upper eye lobes 0.4 times length of scape; distance between lower eye lobes in frontal view 0.6 times length of scape. Antennae 2.1 times elytral length, reaching elytral apex at midlength of antennomere VIII. Scape subcylindrical, slightly widened toward apex, arched in side view; with some long, erect setae throughout. Antennomeres III–IV with long, erect setae on ventral side, denser on III. Antennal formula (ratio) based on length of antennomere III: scape = 0.64; pedicel = 0.15; IV = 0.77; V = 0.88; VI = 0.88; VII = 0.88; VIII = 0.82; IX = 0.77; X = 0.74; XI = 0.77.

Thorax. Prothorax 1.4 times longer than wide, with basal constriction distinct and distal constriction slightly marked. Pronotum somewhat opaque, primarily in basal half, except shining transverse central area; moderately coarsely, very sparsely punctate; shining area glabrous; with sparse erect setae throughout, except in glabrous area. Sides of prothorax moderately coarsely, very sparsely punctate, except for impunctate, transverse finely striate area close to distal margin (this area widened ventrally); pubescent and interspersed with long, erect setae, except for nearly glabrous, oblique wide band close to prosternum and close to distal margin. Prosternal process narrowly constricted centrally (width about 1/7 times width of procoxal cavity). Mesosternum sparsely pubescent centrally, pubescence denser laterally and on mesosternal process. Metepisternum and metasternum with pubescence moderately abundant, but not obscuring integument. Scutellum with pubescence not obscuring integument.

Elytra. Coarsely, moderately sparsely punctate (punctures finer toward apax), with a long, erect, thick seta issuing from most punctures.

Legs. Femora and tibiae with coarse, shallow, sparse punctures, each with a long, erect, thick seta; remaining surface with abundant pubescence not obscuring integument.

Abdomen. Ventrites finely, sparsely punctate; with abundant pubescence, not obscuring integument, interspersed with long, erect setae; apex of ventrite V truncate.

Female. Differs from male primarily by shorter antennae, 1.7 times elytral length, reaching elytral apex at apex of antennomere IX or basal quarter of X, and apex of abdominal ventrite V rounded to obtuse.

Color variation in paratypes. Ventral side of the meso- and metathorax and abdomen from orange to dark brown; legs from entirely brown to reddish brown; head and prothorax from reddish brown (with brown areas) to almost black.

Dimensions (holotype / paratype males/ paratype females). Total length 10.10/10.50–12.80/7.05– 15.70; prothorax: length 2.00/2.20–2.90/1.45–3.30; anterior width 1.35/1.50–2.00/1.05–2.20; posterior width 1.30/1.60–2.00/1.05–2.25; max. prothoracic width 1.45/1.70–2.20/1.10–2.50; humeral width 1.85/2.20–2.75/1.50–3.30; elytral length 6.15/6.65–8.05/4.75–9.60.

Type material. Holotype male from BOLIVIA, Santa Cruz: Refugio Los Volcanes (18º06’S / 63º36’W; 3400-4200 ft), 16-20.IX.2012, Wappes, Skelley, Bonaso, Hamel col. ( MNKM) . Paratypes – BOLIVIA, Santa Cruz: 4 males, 11 females, same data as holotype (3m, 9f ACMT; 1m, 1f FWSC; 1f MZSP) ; 1 female, same data as holotype ( RFMC) ; 4 km N Bermejo ( Refugio Los Volcanes ; 1045-1350 m; 18º06’S / 63º36’W), 1 female, 4-8.X.2007, Wappes & Morris col. ( ACMT) ; 2 females, 17-24.X.2014, Wappes & Morris col. ( MZSP) ; Refugio Los Volcanes (3363”), 1 female, 1-10.X.2008, Morris & Wappes col. ( RFMC) ; 3 males, 1 female, 18-24.X.2014, Morris & Wappes col. (2m, 1f RFMC; 1m MZSP) ; Pampagrande ( Florida Province ), 1 female, 18.IX.1995, F.A. Langer col. ( MNKM) ; Amboro road above Achira Campo (5-5,800 ft), 1 male, 1 female, 9-11.X.2004, Wappes & Morris col. ( ACMT) .

Etymology. Named for the locality, Refugio los Volcanes, where most of the type series was collected.

Figures

Figures 1–11. Newspecies of Neoibidionini.1–6, Chiquitanovolcanesensis sp. nov. 1) Holotype male, dorsal habitus. 2) Holotype male, ventral habitus. 3) Holotype male, lateral habitus. 4) Holotype male, head, frontal view. 5) Holotype male, head and scape, dorsal view. 6) Paratype female, dorsal habitus. 7–11, Compsibidion achiraensis sp. nov., holotype female: 7) Head, frontal view. 8) Head and scape, dorsal view. 9) Dorsal habitus. 10) Ventral habitus. 11) Lateral habitus.