Estoloides pubescens, Santos-Silva & Wappes & Galileo, 2018

Santos-Silva, Antonio, Wappes, James E. & Galileo, Maria Helena M., 2018, Descriptions and synonymies in American Desmiphorini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4375 (4), pp. 451-501 : 467-468

Estoloides pubescens sp. nov.

( Figs 93–97 )

Description. Female. Integument mostly dark brown, almost black; mouthparts dark reddish brown except apex of palpomeres yellowish brown. Pubescence pale yellow, more yellowish white on antennomeres III–XI.

Head. Frons and vertex moderately coarsely, abundantly punctate, slightly sparser toward prothoracic margin, densely micropunctate between coarser punctures; with pubescence nearly obscuring integument, with short, suberect, moderately abundant yellow setae interspersed and a few long, erect yellow setae close to eyes (more reddish close to lower eye lobes). Area behind upper eye lobes with pubescence obscuring integument, with a few long, erect yellow setae interspersed close to eye. Area behind lower eye lobes slightly tumid close to eye, somewhat finely rugose-punctate toward prothorax on area close to upper eye lobes, gradually less so toward gena; with pubescence obscuring integument on tumid area, abundant, nearly obscuring integument on small area adjacent to tumid area, glabrous on remaining surface; with a few long, erect yellow setae close to eye. Antennal tubercles densely micropunctate, with pubescence nearly obscuring integument, with a few long, erect yellow setae interspersed. Median groove nearly indistinct throughout. Genae finely, transversely striate on basal half, especially toward ventral side, micropunctate on remaining surface; with pubescence not obscuring integument, slightly denser close to eye and toward ventral side, almost absent toward apex, especially toward dorsal side; with a few long, erect yellow setae toward ventral side. Gulamentum smooth, shining, glabrous except distal area finely, moderately sparsely punctate, pubescence not obscuring integument, with a few long, erect reddish brown setae interspersed. Labrum convex on basal third, gradually inclined on remaining surface; finely, abundantly punctate, more so on inclined area; with long, erect, sparse yellow setae and dense fringe with golden setae covering distal region. Distance between upper eye lobes 0.54 times length of scape (2.55 times width of one lobe); in frontal view, distance between lower eye lobes 0.93 times length of scape. Antennae 1.85 times elytral length, reaching elytral apex at distal third of antennomere VIII. Scape gradually widened internally; densely micropunctate; pubescence partially obscuring integument, with a few long, erect yellow setae interspersed dorsally, sparse but more abundantly on distal half ventrally. Antennomeres with long, erect yellowish white setae ventrally, gradually shorter and sparser toward XI. Antennal formula (ratio) based on length of antennomere III: scape = 0.75; pedicel = 0.12; IV = 1.04; V = 0.77; VI = 0.73; VII = 0.68; VIII = 0.62; IX = 0.56; X = 0.54; XI = 0.50.

Thorax. Prothorax, maximum width 1.4 times wider than long (including lateral tubercles); lateral tubercles large, placed at middle, with apex acute. Pronotum with three slightly elevated gibbosities, one elongate on center of basal half, one circular on each side of distal half; coarsely abundantly punctate except on smooth basal gibbosity; pubescence partially obscuring integument, denser on basal half of central gibbosity, with sparse, long, erect yellow setae interspersed. Sides of prothorax coarsely, moderately sparsely punctate on wide central area, impunctate on base and oblique area from procoxal cavity to distal margin; pubescence partially obscuring integument, with sparse, long, erect yellow setae interspersed centrally near lateral tubercle. Prosternum with a few, moderately fine punctures centrally close to prosternal process; pubescence not obscuring integument. Prosternal process slightly longitudinally sulcate; pubescence partially obscuring integument, bristly toward apex. Ventral side of meso- and metathorax with pubescence partially obscuring integument, except nearly smooth central area of meso- and metaventrite. Mesoventral process slightly wider than central area of prosternal process, distinctly narrower than central projection of metaventrite. Metanepisternum and sides of metaventrite finely, sparsely punctate. Scutellum with dense yellowish white pubescence except centrobasal area nearly glabrous. Elytra. Coarsely, moderately abundantly punctate (punctures subaligned except on basal quarter); pubescence nearly obscuring integument, with short, erect brown setae interspersed; elytral apex slightly obliquely truncate. Legs. Femora with pubescence nearly obscuring integument, except scattered, small, glabrous subcircular areas.

Abdomen. Ventrites with pubescence not obscuring integument, slightly denser laterally, interspersed with small, glabrous, subcircular areas (less so on center of ventrites I–IV). Ventrite V depressed centrally at distal quarter; apex truncate, slightly emarginate centrally.

Dimensions (mm). Total length, 11.79; prothoracic length, 2.25; basal prothoracic width 2.47; distal prothoracic width, 2.34; maximum prothoracic width (between apices of lateral tubercles), 3.15; humeral width, 3.78; elytral length, 8.37.

Type material. Holotype female from MEXICO, Morelos: 6 km W Yautepec , 17–18.X.1984, E. Giesbert col. ( FSCA).

Etymology. Named for the evenly distributed, fine velvety looking dorsal pubescence of the new species.

Remarks. Estoloides pubescens sp. nov. is similar to E. andresi but differs by the mesoventral process ( Fig. 94 ) slightly wider than central area of prosternal process, distinctly narrower than central projection of metaventrite. In E. andresi , the mesoventral process ( Fig. 98 ) is about 1.5 times wider than central area of prosternal process, and nearly as wide as central projection of metaventrite.

Figures

FIGURES 88–98. 88–92, Estoloides chiapensis: 88, holotype male, dorsal habitus; 89, holotype male, ventral habitus; 90, holotype male, lateral habitus; 91, holotype male, head, frontal view; 92, paratype female, dorsal habitus. 93–97, Estoloides pubescens, holotype female:93, head, frontal view; 94, mesoventral process; 95, dorsal habitus; 96, ventral habitus; 97, lateral habitus.98, Estoloides andresi, holotype female, mesoventral process.