DESCRIPTION: Female. Color: Integument metallic green; labrum, mandibles, palpi, base of scape, procoxae and protibiae dark brown; from pedicel to antennomere XI, internal and external margins of elytra metallic purple; meso- and meta legs metallic blue; elytral apex yellowish. Head: Vertex smooth, with long, erect, and sparse whitish setae; frons short, convex, smooth and glabrous; clypeus finely punctate, with long and dense whitish setae; labrum subsmooth, with long, erect sparse whitish setae. Genae short, apex truncate. Upper eye lobes well separated, distance between them 2.5× width of one upper lobe. Gulamentum smooth. Antennae reaching elytral apex at base of antennomere VIII; scape curved at base, progressively dilated to apex, finely punctate, with long, erect brownish setae; flagellomeres coarsely punctate, with short, dense brownish setae; antennal formula (ratio) based on length of antennomere III: scape = 0.91; pedicel = 0.08; IV = 1.0; V = 0.95; VI = 0.88; VII = 0.88; VIII = 0.82; IX = 0.73; X = 0.60; XI = 0.69. Thorax: Prothorax rectangular, 1.2× wider (including lateral tubercles) than long; lateral tubercles slightly elevated, large at base, rounded at apex. Surface of pronotum with fine, sparse punctures on posterior half, with transverse, fine wrinkles on lateral gibbosities; gibbosities, slightly elevated, and scarcely differentiated between them. Prosternum with transverse sulcus, glabrous and smooth. Prosternal process rounded at apex; width at narrowest point equal to 1/7 of procoxal cavity width. Mesoventral process strongly emarginated and excavated at apex, which is subequal in width to mesocoxal cavity. Scutellum with short, decumbent whitish setae, denser at posterior margin, which is rounded. Elytra gradually narrowed to apex, about 6× as long as prothorax; with sparse and deep punctation on base, denser and coarser toward apex; apex unarmed, obliquely truncate. Profemora subfusiform; meso and metafemora linear; inner apex of meso- and metafemora with triangular projection. Abdomen: Ventrites finely, sparsely punctate; with long, sparse whitish setae denser laterally; ventrites gradually decreasing in width toward last ventrite; apex of ventrite V truncate.
DIMENSIONS (mm): Holotype female. Total length, 14.0; prothoracic length, 1.7; anterior prothoracic width, 1.5; posterior prothoracic width, 1.6; widest prothoracic width (between apices of lateral tubercles), 2.2; humeral width, 2.7; elytral length, 10.2.
TYPE MATERIAL: Holotype female. PERU, Huánuco: Chinchao (25 km below Carpish, 2500 m), 11.IX.1946, F. Woytkowski col. (AMNH).
ETYMOLOGY: The specific name is from the Latin viridis (“green”) referring to the color of the body.
REMARKS: The new species differs from other species of Paracometes by having most of the body with metallic green coloration, pronotum lacking central gibbosity and lateral gibbosities with transverse striae. With elytra mostly a lighter color and with apex and base concolorous, Paracometes viridis is similar to P. venustus (Bates, 1885). The new species differs from it by the head, prothorax, and elytra concolorous, pronotum with fine and sparse punctures, and elytra unicolorous. In P. venustus, the head and prothorax are bluish or greenish and the elytra are orangish with large dark band laterally, and surface of pronotum is coarsely punctate (except on gibbosities). This is the first record of the genus from Peru (fig. 4).