Coscinedes elpis, Santos-Silva, 2022

Coscinedes elpis View in CoL sp. nov.

( Fig. 1 -5)

ZooBank:http://zoobank.org/ 53462783-0714-4607-A624-DB8574DB7700

Holotype, ♂, GUATEMALA, Zacapa: Quarry rd. to San Lorenzo, Sierra Las Minas , 15º04’N, 89º67’W, 555 m, 26.V.2019, Wappes, Monzón & Skillman leg. ( FSCA).

Description of the holotype.

Coloration. – Integument mostly shiny. Head, prothorax, mesoventrite, and mesanepisternum dark reddish; anteclypeus and labrum dark reddish-brown; prosternal process and mesoventral process dark reddish with some areas blackish; mandibles dark reddish except black apex; scape and pedicel dark reddish basally, gradually blackish toward apex; antennomeres III–VIII black, opaque; antennomeres IX–XI dark brown, opaque, with base of IX slightly dark reddish, and apex of XI reddish brown. Mesepimeron, metanepisternum, metaventrite, femora, tibiae black. Tarsi mostly dark brown, blackish on some areas, except reddish brownclaws and metatarsomeres III–V. Abdominal ventrites black, except narrow reddish-brown apex of ventrites 1–4.

Head. – Frons coarsely, densely, deeply punctate, each puncture with short, bristly yellowish-white seta. Antennal tubercles coarsely punctate, except nearly smooth apex (punctures finer than on frons); each puncture with short yellowish-white seta; apical area with sparse row of minute whitish setae. Area between antennal tubercles laterally with punctures and setae as on frons, punctures anastomosed centrally. Vertex gradually elevated toward prothoracic margin; coarsely, deeply punctate (punctures coarser than on frons), each puncture with minute yellowish-white seta; with one long, erect yellow seta on each side behind antennal tubercles. Sides of head coarsely, deeply, abundantly punctate superiorly, each puncture with minute yellowish-white seta; area behind eyes superiorly subsmooth close to eye, coarsely punctate close to prothorax (some punctures with short yellowish-white seta), inferiorly tumid, moderately coarsely punctate close to eye (some punctures with short yellowish-white setae), with a few coarse punctures toward prothorax. Genae somewhat rugose-punctate, except smooth apex; with short, moderately sparse whitish setae, except glabrous apex. Wide central area of postclypeus slightly rugose-punctate; with a few minute yellowish-white setae, and one long, erect pale yellow seta on each side. Sides of postclypeus smooth, glabrous. Labrum coplanar with anteclypeus on posterior half, inclined on anterior half (central area concave); glabrous close to anteclypeus, with minute, sparse yellowish-white setae close to inclined area, with one long, erect pale yellow seta on each side of inclined area, and moderately dense brownish setae on concave area. Gulamentum smooth, glabrous on posterior third, coarsely, densely punctate on anterior 2/3, each puncture with whitish seta, and one long, erect pale yellow seta on each side. Mandibles coarsely, densely punctate on basal 2/3 of outer side, smooth on apical third; each puncture with short whitish or yellow seta; with tuft of long, erect yellow setae close to smooth area. Posterior area of eyes slightly projected upward posteriorly; in frontal view, distance between eyes 0.55 times distance between outer margins of eyes. Antennae 1.5 times elytral length, reaching elytral apex at posterior third of antennomere XI. Scape convex dorsally, straight ventrally; moderately finely, abundantly punctate, punctures slightly sparser ventrally, except smooth dorsal apex; each puncture with a minute whitish seta. Pedicel and antennomeres III–XI densely minutely punctate, with fine punctures interspersed; with minute, decumbent whitish setae, gradually more abundant toward antennomere XI, and short, erect yellowish-white setae interspersed dorsally from antennomere VI; apical area of ventral surface of antennomeres V–X with short, abundant yellowish pubescence.

Antennal formula based on length of antennomere III:

– Scape = 1.11. – Pedicel = 0.39. – IV = 1.22. – V = 1.44. – VI = 1.55. – VII = 1.55. – VIII = 1.61. – IX = 1.67. – X = 1.50. – XI = 1.94.

Thorax. – Prothorax longitudinal; sides gradually widened from anterolateral angles to posterior third, narrowed toward posterior quarter, then parallel-sided to posterolateral angles; anterior margin convex and posterior margin concave. Pronotum very coarsely, deeply reticulate-punctate; each puncture with minute yellowish-white seta. Sides of prothorax with sculpturing and setae as on pronotum, except smooth, glabrous area close to posterior margin, and one long, erect yellowish-brown seta on each side of posterior fifth. Prosternum coarsely abundantly punctate, punctures coarser, longitudinal on sides of posterior half, transverse on remaining surface (punctures gradually finer toward anterior margin); each puncture with short whitish seta. Prosternal process nearly smooth, glabrous, strongly narrowed on anterior third, pentagonal on posterior 2/3, arched from apex of narrow area to posterior third, then flattened. Ventral surface of mesothorax coarsely, deeply, abundantly punctate, except mesepimeron somewhat rugose-punctate, and sides and apex of mesoventral process smooth; suture between mesoventrite and mesanepisternum absent; each puncture with short whitish seta; mesoventral process 0.55 times mesocoxal width. Metaventrite and metanepisternum coarsely, deeply, abundantly punctate, punctures gradually finer toward central area of metaventrite, especially toward posterior region; each puncture with short yellowish-white seta. Scutellum smooth, glabrous, subquadrate.

Elytra. – Coarsely, densely, almost reticulate-punctate, punctures finer toward apex; each puncture with short yellowish-white seta; apex rounded.

Legs. – Profemoral peduncle short; femoral club abruptly widened dorsally; minutely, sparsely punctate, punctures denser on posterior third of dorsal surface of club; with short, sparse white setae. Meso- and metafemora pedunculate-clavate; punctures and setae as on profemora. Tibiae with short, sparse white setae, except dense, bristly yellowish-brown setae on posterior 2/3 of ventral surface of protibiae, and posterior half of ventral surface of meso- and metatibiae; metatibiae with a few long, decumbent yellow setae. Metatarsomere I distinctly shorter than II–III together.