Scythropopsis intricata, Santos-Silva & Botero & Wappes, 2020

Santos-Silva, Antonio, Botero, Juan Pablo & Wappes, James E., 2020, Neotropical Acanthoderini (Coleoptera, Cerambycidae, Lamiinae): Synonymies and new status in some genera, new species, transferences and new distributional records, Papéis Avulsos de Zoologia 60, pp. 1-40 : 15-18

Scythropopsis intricata sp. nov. ( Figs. 72-76 )

Description: Female: Integument mostly black; mouthparts dark reddish-brown with darkened areas, except palpi of last palpomeres black with yellowish-brown apex.

Head: Frons dense white pubescent with narrow, longitudinal, central glabrous band close to clypeus; with a few long, erect dark setae close to lower eye lobes. Area between antennal tubercles and upper eye lobes, and behind upper eye lobes with dense white pubescence, except moderately narrow, longitudinal, glabrous central band between antennal tubercles and upper eye lobes, orange pubescence interspersed in area adjacent to inner side of upper eye lobes, orange pubescent macula behind beginning of the upper eye lobes, and oblique orange pubescent band each side of median groove between antennal tubercles and upper eye lobes, and triangular glabrous indent on posterior central area; area of vertex and behind upper eye lobes close to prothorax glabrous; with a few long, erect dark setae close to eyes. Area behind lower eye lobes (this area widened toward ventral surface) with dense white pubescence close to wide superior area of eye, with orange pubescence interspersed, orange pubescence on inferior area close to eye, with white pubescence interspersed. Genae slightly shorter than twice length of lower eye lobe; with dense orange pubescence close to eye and white pubescence interspersed, distinctly sparser toward glabrous apex. Postclypeus with dense, long, decumbent white pubescence on wide central area, glabrous laterally; with sparse, long, erect dark setae on pubescent area. Posterior ⅔ of labrum coplanar with anteclypeus, inclined at anterior third; with dense, long, decumbent white pubescence on posterior ⅔, sparser, shorter on anterior third; with fringe of pale-yellow setae in anterior margin; with sparse, long, erect dark setae in central area of posterior ⅔. Gulamentum glabrous except narrow anterior area with yellowish-white pubescence not obscuring integument. Distance between upper eye lobes 0.9 times length of scape; in frontal view, distance between lower eye lobes 1.2 times length of scape. Antennae 1.25 times elytral length, reaching posterior fifth of elytra. Scape clavate, longitudinally sulcate dorsally in basal half; with yellowish brown pubescence partially obscuring integument dorsally and laterally, with white pubescence interspersed, except white distal pubescent ring, which surrounds the entire circumference of the scape; ventral surface with white pubescence not obscuring integument; with a few long, erect dark setae ventrally. Pedicel with abundant white pubescence, except yellowish-brown pubescence on center of dorsal and lateral surfaces; with a few long, erect dark setae ventrally. Antennomere III with abundant white pubescence on wide anterior area, except sparsely pubescent on center of dorsal and lateral surfaces of this area; remaining surface with dark pubescence partially obscuring integument; anterior ¾ of ventral surface with sparse, long, erect dark setae, becoming noticeable denser, forming distinct tuft on posterior quarter. Antennomere IV with anterior ⅔ densely white pubescent, dark on remaining surface; with long, erect dark setae on ventral surface of posterior third, forming distinct tuft in posterior quarter of antennomere (shorter than in III). Antennomere V with dense white pubescence on basal half, dark on distal half; ventral third of surface with moderately short and abundant, erect dark setae. Remaining antennomeres with basal white pubescent ring, and dark pubescence on remaining surface. Antennal formula (ratio) based on length of antennomere III: scape = 0.75; pedicel = 0.25; IV = 0.75;V = 0.42;VI = 0.30;VII = 0.25;VIII = 0.20; IX = 0.17; X = 0.15; XI = 0.20.

Thorax: Lateral tubercle of prothorax large, conical, slightly curved upward, with blunt apex. Pronotum with large, elevated tubercle on each side, with top truncate and somewhat bifid; with large tubercle centrally, from posterior sulcus to near anterior margin, triangular-shaped posteriorly, carina-shaped anteriorly; slightly well-marked centrally, more distinct laterally; with coarse, sparse punctures, forming transverse row in posterior sulcus; with white and orange pubescence intermixed, denser laterally, with white pubescence prevailing in some areas, orange in others, apex of lateral pronotal tubercles, and parts of central tubercle; with a few long, erect dark setae posteriorly. Sides of prothorax with dense white pubescence, with orange pubescence interspersed on some areas. Prosternum with white pubescence, denser laterally, with orange pubescence interspersed on area under procoxal cavities. Prosternal process about as wide as procoxal cavity, coarsely rugose-punctate,longitudinally sulcate centrally,with apex strongly emarginate; with abundant white pubescence not obscuring integument. Ventral surface of mesothorax with abundant yellowish-white pubescence centrally, not obscuring integument, dense, white pubescence, obscuring integument laterally, except large area of mesanepisternum with orange pubescence interspersed. Mesoventral process slightly wider than mesocoxal cavity, with distinctly, elevated tubercle each side of anterior area; with white pubescence nearly obscuring integument, top of lateral tubercles glabrous. Ventral surface of metathorax with dense yellowish-white pubescence, with orange pubescence interspersed in some areas of sides. Scutellum with white pubescence centrally, orange on sides, margins with white and orange pubescence intermixed. Elytra: Humeri projected slightly forward; with elevated centrobasal crest between humeri and scutellum, covered with small tubercles, and distinct carina from apex of centrobasal crest to near apex; with another slightly distinct basal crest,also between humeri and scutellum but placed more laterally that the former crest, covered with small tubercles (sparser than in the other crest), followed by another carina, fused with the innermost near apex; humeral area with small, sparse tubercles; apex truncated with outer angle triangularly projected; with sparse, erect dark setae throughout; pubescence dense, mostly white with orange pubescent maculae and bands interspersed, except seven, notice- able dark-brown pubescent areas: one small, oblique, placed centrally on anterior third; one before middle laterally; one arched before middle close to suture; one zig-zag, large, placed about middle, not reaching suture; one inverted V-shaped dorsally on posterior fifth; another oblique, placed laterally on posterior fifth; sparse small maculae along posterior half of suture and posterior margin. Legs: Femora with dense white pubescence on peduncle and base of club, with white and orange pubescence intermixed on remaining surface. Tibiae with three yellowish-white pubescent rings, one basally, one centrally, another narrower, less conspicuous on apex; remaining surface with dark-brown pubescence; entire surface with short, sparse orange setae interspersed. Tarsomeres I and V mostly with white pubescence dorsally, and remaining segments with brownish pubescence not obscuring integument.

Abdomen: Ventrites I-IV with yellowish-white pubescence laterally, gradually whiter, sparser toward central area; ventrite V mostly with white pubescence, distinctly sparser on some large areas, with sparse, long, erect dark setae interspersed posteriorly;apex of ventrite V truncate.

Dimensions (mm): Total length,12.9; prothoracic length, 2.7; anterior prothoracic width, 4.1; posterior prothoracic width, 3.9; maximum prothoracic width, 5.3; humeral width, 6.1; elytral length, 9.0.

Type material: Holotype female from MEXICO, Chiapas: Lago de Colores, 12.V.1969, J.M. Campbell col. ( MZSP) .

Remarks: Scythropopsis intricata has a feature of Tetrasarus : tuft of setae on ventral surface of the antennomeres III and IV. However, the tuft of setae is much denser, and the antennomere IV is distinctly longer in species of Tetrasarus . Notwithstanding, it could be compared with Tetrasarus inops Bates, 1880 (see photograph of the lectotype at Bezark, 2019), by the similar elytral pubescence pattern, from which it differs, besides the two features pointed out before, by the proportions between elytra and head + prothorax (elytra distinctly shorter in S. intricata ). In Scythropopsis , S.intricata is most similar to S.sallei , but differs by the tuft of setae on ventral surface of the antennomeres III and IV,which is absent in females of S.sallei .

Etymology: The name of this new species:“intricata” is in reference to the intricate pubescent pattern of the elytra.

Figures

Figures 67-76. (67‑71) Scythropopsis barrerai, female. (67) Dorsal habitus. (68)Ventral habitus.(69) Lateral habitus.(70) Head,frontal view.(71) Lower eye lobe. (72‑76) Scythropopsis intricata sp.nov.holotype female.(72)Dorsal habitus.(73)Ventralhabitus.(74) Lateral habitus.(75) Head,frontal view.(76) Lower eye lobe.