Gyrpanetes clarkei, Martins, Ubirajara R., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2015

Martins, Ubirajara R., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2015, Four new species of Desmiphorini (Coleoptera, Cerambycidae, Lamiinae), ZooKeys 513, pp. 1-11 : 6-8

Taxon classification Animalia Coleoptera Cerambycidae

Gyrpanetes clarkei sp. n. Figs 10, 11, 12

Description.

Holotype male. Integument dark-brown, almost black on some areas, except for: base of antennomere III–X (about basal half on antennomeres V–IX), gula, and peduncle of femora reddish-brown; one large, irregular, orangish area on each half of elytron.

Head. Frons transverse, fine, densely punctate; pubescence yellowish-brown, abundant, but not obliterating integument, denser, yellowish close to lower eye lobes. Antennal tubercles moderately elevate; sculpture as on frons; pubescence yellowish-brown towards inner side, more yellowish close to eye. Coronal suture distinct from clypeus to anterior edge of prothorax. Vertex with sculpture and pubescence as on frons. Area behind eyes with band of yellowish pubescence close to eyes, gradually glabrous towards anterior edge of prothorax. Genae with yellowish pubescence (more whitish depending on angle of light). Gula shiny, glabrous, except for band of yellowish pubescence close to anterior margin. Distance between upper eye lobes equal to 0.35 times length of scape; distance between lower eye lobes equal to 0.65 times length of scape. Antennae as long as 2.0 times elytral length; reaching elytral apex about base of antennomere VII; pedicel and antennomeres III–VI with long, dark setae on ventral side (sparser towards antennomere VI); light area of antennomeres with yellowish pubescence; antennal formula based on antennomere III: scape = 0.78; pedicel = 0.19; IV = 0.89; V = 0.73; VI = 0.65; VII = 0.56; VIII = 0.51; IX = 0.46; X = 0.40; XI = 0.38.

Thorax. Pronotum fine, densely punctate; disc with whitish-yellow pubescence (more whitish depending on angle of incision of light), shorter and slightly sparser on area forming "M-like shape" (less distinct depending on the viewing angle). Sides of prothorax with whitish-yellow pubescence, shorter and slightly sparser on central sub-rounded area; sculpture as on pronotum. Ventral side of thorax with yellowish-brown pubescence (more whitish depending on angle of light), not obliterating integument. Elytra. Center basal region without crest; sparse, coarsely punctate on basal half (denser around scutellum), distinctly sparser on distal half; with thick, moderately abundant, very long, dark setae throughout; pubescence whitish-yellow (more whitish depending on angle of incision of light), whitish and yellowish-brown, forming irregular drawing; around some punctures of distal half, pubescence forming ocellar macula; with two slightly distinct longitudinal dashed lines with whitish pubescence, more distinct around middle; apex obliquely truncate, with sutural angle rounded. Legs. Pubescence as on urosternites.

Abdomen. Pubescence on urosternites whitish-yellow (more whitish depending on angle of light), not obliterating integument

Variability. Gula and peduncle of femora brown.

Dimensions in mm

(male). Total length, 4.10-4.35; length of prothorax at center, 0.80-0.85; greatest width of prothorax, 1.05-1.10; anterior width of prothorax, 0.85-0.90; posterior width of prothorax, 0.85-0.90; humeral width, 1.25-1.35; elytral length, 3.00-3.10. The smallest dimensions are those of the holotype.

Type material.

Holotype and paratype male from BOLIVIA, Tarija: 24 km W Villamontes (21°21'S, 63°37'W; ca. 800 m; Valley Rio Isiri; Submontane Chaco Forest), 11.I.2008, R. Clarke & S. Zamalloa col. (holotype, MNKM; paratype, MZSP).

Etymology.

The species is named after Robin O. S. Clarke, one of the collectors of the type specimens.

Remarks.

Gyrpanetes clarkei differs from Gyrpanetes oriba Galileo & Martins, 2003, as follows: antennomere III is reddish only at base; pronotal pubescence forming “M-like” macula; elytral dashed lines with whitish pubescence partially distinct; elytral pubescence has areas distinctly exposing larger and more distinct integument (dark areas). In Gyrpanetes oriba the antennomere III is dark only at the apex, the pronotal pubescence does not form “M-like” macula, the elytral dashed lines are distinct from base to near apex, and the elytral pubescence is more distinctly whitish throughout.

Martins and Galileo (1998) included a key to separate the two species of the genus. It is necessary to provide a new key to include the four species of the genus: