Paracometes solangeae, Botero & Almeida, 2019

Botero, Juan Pablo & Almeida, Lúcia M., 2019, New species and new geographical records in Disteniidae (Coleoptera, Chrysomeloidea) with revised keys to species of Novantinoe and American species of Distenia (Distenia), Zootaxa 4590 (1), pp. 40-58 : 40-58

Paracometes solangeae sp. nov.

( Figures 29–32 )

urn:lsid:zoobank.org:act:E1FEFF8A-D19F-44E0-84EE-E6C7AFCB6EE0

Description. Female. Integument brownish with distinct violaceus reflections. Antennae darker. Legs mostly brownish, with coxae, base and apex of profemora, ventral face of protibiae, and base of meso- and metafemora yellowish. Each elytron with circular orange macula laterobasally.

Body with long, erect, sparse whitish setae. Head. Vertex finely punctate, transversely striate; frons short, smooth and glabrous; postclypeus finely, moderately densely punctate. Genae short, apex rounded. Upper eye lobes well-separated, distance between them 5 times width of one upper lobe. Gulamentum smooth. Antennae reaching elytral apex at antennomere VIII; antennomeres finely punctate; scape and flagellomeres with short and dense brownish setae; scape curved at base, progressively dilated to apex; antennal formula (ratio) based on length of antennomere III: scape = 1.03; pedicel = 0.10; IV = 1.0; V = 1.0; VI = 0.97; VII = 0.93; VIII = 0.83; IX = 0.69; X = 0.55; XI = 0.59.

Thorax. Prothorax quadrangular, as wide as long (including lateral tubercles); lateral tubercles slightly elevated, large at base, rounded at apex. Surface of pronotum coarsely punctate, with transverse fine wrinkles on longitudinal medial band. Pronotum with five gibbosities, slightly elevated, and scarcely differentiated between them: two laterals at anterior third; two lateral at posterior fourth; another elongate, placed centrally. Prosternum with transverse sulcus, glabrous, with long whitish setae at anterior and posterior margin. Prosternal process truncate at apex; width at narrowest point equal to 1/9 of procoxal cavity width. Mesoventral process emarginate at apex, which is subequal in width to mesocoxal cavity. Scutellum almost glabrous, with a few sparse setae, posterior margin rounded. Elytra gradually narrowed to apex, about 4.5 times as long as prothorax; with coarse and deep punctation, not arranged in rows; apex unarmed. Femora subfusiform; inner apex of meso- and metafemora with minute triangular projection.

Dimensions (mm). Holotype female. Total length, 8.8; prothoracic length, 1.4; basal prothoracic width, 1.2; distal prothoracic width, 1.1; widest prothoracic width (between apices of lateral tubercles), 1.4; humeral width, 3.1; elytral length, 6.3.

Type material. Holotype female from BRAZIL, Pará : Jacareacanga, X.1969, F.R. Barbosa col. DZUP469278 ( DZUP).

Etymology. The specific name is a genitive patronym in honor of the late Dilma Solange Napp, a noted specialist in Cerambycidae .

Remarks. By the macula at base of the elytra, Paracometes solangeae sp. nov. is similar to P. acutipennis (Buquet, 1851) and P. birai (Hovore & Santos-Silva, 2007) . It differs from P. acutipennis by the pronotum with transverse fine wrinkles and gibbosities punctate, dark area of elytra reaching scutellum, elytra with erect whitish setae, and femora bicolorous. In P. acutipennis , the pronotum has no wrinkles and the gibbosities are glabrous, dark area of the elytra does not reach the scutellum, elytra have erect brown setae, and the femora are unicolorous. Paracometes solangeae sp. nov. differs from P. birai by the central longitudinal gibbosity of the pronotum slightly elevate, elytra without light band at distal half, and elytral apex slightly, narrowly, obliquely truncate. In P. birai , the central longitudinal gibbosity of the pronotum is clearly elevated, elytra have a light band at distal half, and the elytral apex is distinctly obliquely truncate.

According to the most recent key to species of the genus (Heffern & Santos Silva 2016), Paracometes solangeae sp. nov. can be inserted into alternative of couplet 6, as follows:

6(5). Elytral apex distinctly obliquely truncate; distal half of elytra with longitudinal light band laterally. Costa Rica................................................................................. P. birai (Hovore & Santos-Silva, 2007)

- Elytral apex subrounded or slightly, narrowly, obliquely truncate; distal half of elytra without light band................. 7

7(6). Pronotum without wrinkles, gibbosities of pronotum glabrous; dark area of elytra not reaching scutellum; elytra with erect brown setae; femora unicolorous. French Guiana, Brazil (Amazonas)..................... P. acutipennis (Buquet, 1851)

- Pronotum with transverse fine wrinkles, gibbosities with erect setae; dark area of elytra reaching scutellum; elytra with erect whitish setae; femora bicolorous. ( Figs. 29–32 ) Brazil (Pará)................................... P. solangeae sp. nov.

Figures

FIGURES 29–35. 29–32, Paracometes solangeae sp. nov., holotype, female: 29, dorsal view; 30, ventral view; 31, lateral view; 32, detail of head, frontal view. 33–35, Ƒilliersicometes galileoae sp. nov., holotype, male: 33, dorsal view; 34, ventral view; 35, lateral view.