Glyptoscapus letiziae, Nascimento & Santos-Silva, 2018

Nascimento, Francisco Eriberto de Lima & Santos-Silva, Antonio, 2018, New species and synonymies in Hexoplonini Martins, 2006 (Coleoptera, Cerambycidae), with notes and new records on Cerambycinae Latreille, 1802, Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 58, pp. 1-8 : 3-7

Glyptoscapus letiziae sp. nov.

( Figs. 1-4 )

Description: Female: Head dark brown, almost black; mouthparts yellowish-brown except brownish last max-

illary and labial palpomeres; scape dark brown; pedicel dark brown basally, gradually reddish-brown toward apex; antennomeres III-XI pale yellow, very slightly darkened at apex; prothorax, and ventral side of meso- and metathorax black (more dark brown on some areas); legs pale yellow, more brownish on some areas, especially apex of femora, base of tibiae and parts of tarsi; abdominal ventrites I-III dark brown, almost black; abdominal ventrite IV dark brown basally, gradually dark reddish-brown toward apex; abdominal ventrite V dark reddish-brown basally, gradually light reddish-brown toward apex; elytra black, gradually dark brown toward distal area, except: longitudinal, slightly oblique light yellowish-brown macula, placed at about center of dorsal surface from a little before apex of basal quarter to a little after apex of basal third; slightly curved light yellowish-brown band placed on dorsal surface of central third, from suture to lateral curvature; yellowish-white distal area.

Head: Frontal plate slightly convex, rounded close to clypeus, triangularly narrowed toward vertex; smooth except for a few punctures toward its narrowest area; frontal area under antennal tubercles with subtriangular depression (narrowed toward clypeus). Area from between antennal tubercles to almost middle of frontal plate with well-marked invertedV-shaped sulcus;frons with minute, sparse whitish setae close to lower eye lobes, and a few, almost indistinct setae centrally. Vertex depressed, microscopically, densely punctate between antennal tubercles and upper eye lobes; with minute, sparse whitish setae; remaining surface nearly smooth with a few shallow punctures interspersed (slightly rugose close to prothorax); with minute, sparse whitish setae interspersed with a few short, nearly erect white setae. Area behind upper eye lobes smooth close to eye, slightly rugose close to prothorax; with minute, sparse whitish setae on smooth area, glabrous on remaining surface. Area behind lower eye lobes tumid, coarsely, sparsely punctate close to eye, nearly smooth on remaining surface; with long, erect, sparse yellowish-white setae on tumid area, glabrous on remaining surface. Genae finely, sparsely punctate toward dorsal side,more abundantly punctate toward ventral side, except smooth distal area; with minute, sparse golden setae except glabrous distal area. Antennal tubercles somewhat elevated, with rounded apex, abruptly inclined toward upper eye lobe; minutely, sparsely punctate; with minute, sparse white setae. Median groove distinct from apex of frontal plate to area between antennal tubercles. Postclypeus with transverse, fine carina near frontal plate; with fine puncture on each side, from which emerges a long, erect yellowish-brown seta. Labrum coplanar with anteclypeuson basal half, inclined on distal half; with short, sparse yellowish-white setae, one long, erect golden seta on each side, and fringe of golden setae at distal margin. Gula mentum smooth, glabrous from prothoracic margin to level of tumid area behind lower eye lobes,transversely rugose-punctate,with long, erect, sparse yellowish-white setae between upper eye lobes. Upper eye lobes with 3 rows of ommatidia (only two at apex); distance between upper eye lobe 0.55 times length of scape; in frontal view, distance between lower eye lobes 0.53 times length of scape. Antennae 2.2 times elytral length, reaching elytral apex at distal third of antennomere VIII; scape finely, sparsely punctate, with short, sparse, decumbent whitish setae interspersed with long, erect, sparse yellowish-white setae; antennomeres III-V with long, erect pale yellow setae ventrally (shorter, sparser toward V); antennomeres VI-X with long, erect pale yellow setae at apex; antennal formula (ratio) based on length of antennomere III: scape = 0.53; pedicel = 0.11; IV = 0.59; V = 0.61; VI = 0.60; VII = 0.65; VIII = 0.61; IX = 0.59; X = 0.55; XI = 0.74.

Thorax: Prothorax 1.78 times longer than wide; sinuous in side view. Pronotum with fine, sparse punctures, from which emerge long erect yellowish setae; with minute, inconspicuous, sparse, decumbent, white setae. Sides of prothorax nearly smooth; with a few long, erect yellowish setae, and short, decumbent whitish setae close to procoxal cavity. Prosternum with V-shaped basal area with short, decumbent yellowish-white setae (more whitish depending on angle of light source), dens- er at centrobasal area; glabrous on remaining surface. Prosternal process noticeably narrowed centrally, and triangularly expanded distally. Ventral side of mesothorax with yellowish-white pubescence not obscuring integument (more whitish depending on angle of light source), but glabrous centrally on inclined area of mesoventral process. Mesoventral process distally cordiform. Metanepisternum and sides of metaventrite and area close to metacoxae with yellowish-white pubescence (more whitish depending on angle of light source), not obscuring integument; remaining surface of metaventrite with fine and coarse, sparse punctures, from which emerge long, erect yellowish setae. Scutellum with grayish-white pubescence on centrobasal area, golden,dens- er on remaining surface.

Elytra: Coarsely, moderately abundantly punctate on basal 2/3, finer, sparser on distal third; with slightly elevated carina from humerus to after middle; with long, erect yellowish-white setae emerging from some of the punctures, more abundant on distal half; apex excavat- ed, with long spine at outer angle and rounded projection at sutural angle.

Legs: Femora with long, erect, sparse yellowish-white setae; profemora with short rounded lobe on outer and inner apex; mesofemora with long spine on inner apex, and rounded, not distinctly lobed on outer apex; metafemora with long spine on outer apex (longer than spine of mesofemora), and short, acute lobe on inner apex. Metatarsomere I slightly shorter than II-III together.

Abdomen: Ventrites I-IV with yellowish-white pubescence laterally (more whitish depending on angle of light source), very sparse,short yellowish-white setae centrally (especially on I-II), interspersed with a few long, erect yellowish setae. Ventrite V with abundant yellowish-white setae not obscuring integument, interspersed with long, erect yellowish setae on distal area; apex rounded.

Dimensions in mm (holotype female): Total length, 9.95; prothoracic length, 2.25; basal prothoracic width, 1.20; distal prothoracic width, 1.30; humeral width, 1.85; elytral length, 6.25.

Type material: Holotype female from BRAZIL, Minas Gerais: Parque Estadual do Rio Doce , 27.X-14.XI.2013, L. Migliore col. ( MZSP).

Remarks: Glyptstocapus letiziae differs from G. cicatricosus by the dorsal and ventral sides of the body mostly very dark, and anterior yellow elytral macula small and not reaching the sides. In G. cicatricosus the general color is distinctly lighter and the elytral macula is larger and always reaches the sides (often margin).

Etymology: Named for our friend Letizia Janaína Migliore (MZSP), collector of the holotype.

Figures

Figures1-7.(1-4)Glyptoscapusletiziaesp.nov.,holotypefemale:(1)Dorsal habitus;(2)Ventralhabitus;(3)Lateralhabitus;(4)Head,frontalview.(5-7)Glyptoscapus bivittatus: (5) Dorsal habitus;(6) Dorsal habitus,anterodorsal view;(7) Meso- and metafemora.