Oncideres johnmaruini Nearns and Nascimento, 2019

Nearns, Eugenio H. & Nascimento, Francisco E. de. L., 2019, A new genus and seven new species of Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) from Central and South America, Insecta Mundi 688, pp. 1-16 : 11-12

Oncideres johnmaruini Nearns and Nascimento , sp. nov.

( Figures 4 a–d)

Description. Female. Length 20.0– 21.6 mm (measured from vertex to elytral apices), width 7.9–8.8 mm (measured across humeri). Habitus as in Fig. 4a . General form elongate-oblong, moderately sized. Integument brown to ferrugineous, with gray, ochraceous and testaceous pubescence; portions of pronotum, elytra and venter with white pubescence.

Head. Frons nearly subquadrate, slightly transverse, about 4.0 times width of lower eye lobes. Eyes with lower lobes moderate-sized, oblong; narrowest area connecting upper and lower eye lobes about 2 ommatidia wide. Genae elongate, nearly 1/2 as tall as lower eye lobes. Antennae about as long as body; antennal tubercles prominent, widely separated; tubercles not armed at apex; scape clavate; antennomere III slightly curved. Antennal formula based on antennomere III: scape = 0.82; II = 0.13; IV = 0.77; V = 0.67; VI = 0.57; VII = 0.56; VIII = 0.53; IX = 0.47; X = 0.39; XI = 0.32.

Thorax. Pronotum roughly conical, transverse, slightly more than 1.5 times as wide as long, wider at apex; disk densely pubescent, with 3 prominent, glabrous tubercles, median tubercle slightly rugose; each side with minute, blunt, glabrous protuberance behind middle; basal transverse sulcus shallow. Scutellum transverse, apex rounded. Elytra. About 2.6 times as long as width at humeri, little more than 4 times as long as pronotal length, nearly 1.5 times broader basally than pronotum at its widest (at apex); lateral margins slightly attenuate, gradually rounded to apices at apical 1/3, apices jointly rounded; basal 1/3 with scattered small and moderately sized glabrous tubercles; humeri moderately prominent, anterior margin arcuate.

Abdomen. Venter with procoxae large, globose, not uncate; apex of prosternal process subtriangular. Mesosternal process about 2/3 as wide as mesocoxal cavity, slightly emarginate. Fifth abdominal ventrite about 1.5 times longer than IV. Legs. Short; femora robust; metafemora clavate apically; tibiae slightly expanded apically; metafemora about 1/4 as long as elytra; tarsomere V about as long as I–IV combined.

Male. Length 17.6–19.0 mm (measured from vertex to elytral apices), width 6.8–7.5 mm (measured across humeri). Similar to female except profemora transversely rugose; antennae nearly 2 times longer than body.

Material examined. Holotype ( Fig. 4 a–d) female from PANAMA, Panama Pr., 10 km N El Llano , May 16–22, 1987, E. Giesbert, coll. ( EFGC) . Allotype, male from COSTA RICA, Heredia Prov., Est. Magsasay, P.N. Braulio Carrillo, 200 m, R. Aguilar, September 1990, L-N-264600, 531100//Costa Rica INBIO, CR1000, 484448 ( MNCR). One male paratype from PANAMA, Panama Prov., 12 km N El Llano, 23/24 Jan 1993, F.T. Hovore, coll. ( NMNH) .

Etymology. This species is named in honor of the first author’s dear friend, John Calvin “JC” Marvin (University of Florida, Gainesville, Florida, USA), for his friendship and support. The epithet is a noun in the genitive case.

Diagnosis and remarks. This species is most similar to O. barclayi Nearns and Tavakilian, 2015 by the pattern of integument color, brown to ferrugineous, by the pattern and color of the elytral pubescence (anteriorly ferrugineous and posteriorly whitish). The new species can be separated from O. barclayi by the more ochraceous and testaceous pubescence coloration; basal 1/3 of the elytra with smaller and less dense glabrous tubercles; males with antennomere III not swollen and profemora not transversely rugose; and relatively larger size (20.0– 21.6 mm). In O. barclayi coloration is less brown; basal 1/3 of the elytra has scattered medium and large glabrous tubercles; males with antennomere III distinctly swollen and profemora transversely rugose; and relatively smaller size (10.4–12.9 mm).

Figures

Figure 4. Oncideres johnmarƲini sp. nov., holotype female: a) Dorsal habitus. b) Lateral habitus. c) Close-up of head. d) Close-up of pronotum and elytral humeri.