Trichohippopsis basilaris Botero and Santos-Silva, 2022

Botero, Juan Pablo & Santos-Silva, Antonio, 2022, New species, synonymy, new records, and taxonomic notes in American Cerambycidae (Coleoptera), Insecta Mundi 2022 (931), pp. 1-22 : 12-15

Trichohippopsis basilaris Botero and Santos-Silva , new species

( Fig. 34–37 )

Description. Holotype male. Integument mostly black; anteclypeus and anterior region of labrum dark reddishbrown; ventral mouthparts dark reddish-brown, except palpi reddish-brown with apex light yellowish-brown; mesoventrite, most of prosternal process, mesoventral process, metanepisternum, metaventrite, scutellum, base of procoxae, most of mesocoxae, base of metacoxae, and trochanters reddish-brown; anterior quarter of elytra orangish-brown.

Head. Frons finely, moderately abundantly punctate; with abundant grayish-white pubescence not obscuring integument; with long, erect, sparse dark brown setae close to eyes. Antennal tubercles elevated; sculpturing and pubescence as on frons, except smooth and glabrous apex; with erect, moderately short brownish setae on inner surface. Vertex and area behind upper eye lobes moderately coarsely and abundantly punctate; with abundant grayish-white pubescence not obscuring integument, and a few long, erect brownish setae interspersed close to upper eye lobes. Area behind lower eye lobes tumid on wide area close to eye; coarsely, moderately abundantly punctate on tumid area, except smooth area close to inferior area of eye, coarsely, densely punctate on superior area close to prothorax, gradually sparsely punctate toward inferior region close to prothorax; with moderately sparse grayish-white pubescence on tumid area, except glabrous smooth area, with sparse grayish-white pubescence on superior area close to prothorax, glabrous toward inferior region close to prothorax. Genae transversely striate centrally, with a few fine punctures close to eye, smooth on apical region; with a few short, erect, thick yellowish-brown setae on striate area, glabrous on remaining surface, except grayish-white pubescence not obscuring integument close to clypeus. Gulamentum smooth, glabrous, except narrow anterior region with long, erect, sparse dark brown setae. Wide central area of postclypeus with abundant grayish-white pubescence not obscuring integument; sides of postclypeus smooth, glabrous. Labrum coplanar with anteclypeus at posterior half, inclined at anterior half; finely, moderately abundantly punctate on posterior half, smooth on anterior half; with long, erect, moderately abundant yellowish-brown setae on posterior half, and fringe of short yellowish-brown setae on anterior margin. Distance between upper eye lobes 0.35 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.47 times distance between outer margins of eyes. Antennae 1.7 times elytral length, reaching elytral apex at apex of antennomere IX. Scape coarsely, abundantly punctate; with bristly brownish pubescence not obscuring integument. Pedicel with abundant brownish pubescence not obscuring integument. Antennomere III with abundant dark brown pubescence, not obscuring integument, denser and bristly ventrally; with long, erect, sparse dark brown setae dorsally, and very long, erect dark brown setae on posterior third of ventral surface. Antennomeres IV–XI with abundant dark brown pubescence not obscuring integument, long, erect, dark brown setae dorsally and laterally, and very long dark brown setae ventrally. Antennal formula based on length of antennomere III: scape = 0.79; pedicel = 0.18; IV = 0.87; V = 0.75; VI = 0.68; VII = 0.65; VIII = 0.62; IX = 0.56; X = 0.53; XI = 0.65.

Thorax. Prothorax cylindrical, longer than wide; anterior constriction feebly marked; posterior constriction distinct. Pronotum coarsely, abundantly punctate, except smooth longitudinal central area, from just before middle to posterior quarter; with abundant grayish-white pubescence not obscuring integument, except glabrous smooth area. Sides of prothorax coarsely, abundantly punctate, except area close to anterior margin with sparser punctures (this area gradually widened toward prosternum); with abundant grayish-white pubescence not obscuring integument, sparser on area close to anterior margin. Prosternum coarsely, abundantly punctate, except narrow area close to anterior margin with sparser punctures; with grayish-white pubescence not obscuring integument. Prosternal process very narrow in basal half, subtriangularly expanded in posterior half; with abundant grayish-white pubescence not obscuring integument. Ventral surface of meso- and metathorax coarsely, abundantly punctate; with grayish-white pubescence not obscuring integument. Mesoventral process slightly narrowed centrally; narrowest area 0.26 times mesocoxae. Scutellum finely, sparsely, shallowly punctate; with dense yellowish-white pubescence laterally, sparse on wide central area. Elytra. Coarsely, abundantly punctate throughout; with yellowish-white pubescence not obscuring integument on orangish-brown area, and grayish-white pubescence not obscuring integument on black area; sides and apical area of black region with suberect dark brown setae interspersed. Legs. Femora with grayish-white pubescence not obscuring integument, bristly, more yellowish-white ventrally. Protibiae with yellowish-white pubescence not obscuring integument, bristly ventrally, except apical half of ventral surface with dense dark brown pubescence; apical third with short, erect, thick black setae interspersed. Basal half of mesotibiae and basal 2/3 of metatibiae with yellowish-white pubescence not obscuring integument, bristly ventrally, and remaining surface of dorsal and lateral surfaces with dark brown pubescence, and remaining surface of ventral surface with bristly, dense yellowish-brown pubescence; apical half of dorsal surface with short, erect, thick black setae interspersed, more abundant on metatibiae. Metatarsomere I shorter than II–III together.

Abdomen. Ventrites coarsely, abundantly punctate; with grayish-white pubescence not obscuring integument, and long, erect, sparse dark brown setae interspersed, erect setae more abundant on ventrite 5.

Dimensions (mm). Total length, 8.40; prothoracic length, 1.40; anterior prothoracic width, 1.10; posterior prothoracic width, 1.05; maximum prothoracic width, 1.40; humeral width, 1.45; elytral length, 5.85.

Type material. Holotype male from FRENCH GUIANA: Amazone Nature Lodge , 4°3.36′N, 52°1.24′W, 980′, MV lights, Montague de Kaw, 1–12.IX.2018, Wappes and Morris leg. ( FSCA, formerly ACMT).

Etymology. Latin “ basilaris ” (at the base), referring to the orangish anterior area of the elytra; a unique characteristic among the species of the genus.

Remarks. Trichohippopsis basilaris new species differs from all of the other species of the genus by the entirely orangish-brown anterior area of the elytra. It is similar to T. vestita Martins and Galileo, 2013 and T. suturalis Martins and Carvalho, 1983 by the shape of the antennomeres, but differs by the absence of the longitudinal pubescent band on the center of the pronotum and sutural area of the elytra (both present in these species), and the scutellum not entirely pubescent (entirely pubescent in these species).

APOMECYNINI Thomson, 1860

Figures

Figures 33–37. Cerambycidae spp. 33) Smodicum dinellii Bruch, 1911, female, dorsal habitus. 34–37) Trichohippopsis basilaris Botero and Santos-Silva, sp. nov., holotype male. 34) Dorsal habitus; 35) Lateral habitus. 36) Ventral habitus. 37) Head, frontal view.