Phrynidius obrieni, Noguera & Santos-Silva, 2023

Noguera, Felipe A. & Santos-Silva, Antonio, 2023, New species and records in Phrynidius Lacordaire (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 5323 (4), pp. 451-476 : 460-461

Phrynidius obrieni sp. nov.

( Figs 18–21 )

Type material. Holotype female from HONDURAS, Atlántida: Liberia [National Park Pico Bonito], 6.IX.1984, C.W. O’Brien leg. ( FSCA) . Paratype female, same data as holotype, except “rain forest,” 2.IX.1984 ( RHTC) .

Diagnosis. Phrynidius obrieni sp. nov. differs from P. wibmeri sp. nov. by the antennomere IV shorter, 0.57 times length of III (0.7 times length of III in P. wibmeri sp. nov.), lower eye lobes 1.8 times longer than wide (shorter than 1.6 times in P. wibmeri sp. nov.), and antennal tubercles closer to each other and slightly more elevated internally (not very close to each other and slightly less elevated internally in P. wibmeri sp. nov.), and prothorax less widened (more distinctly widened in P. wibmeri sp. nov.); from P. diminutus especially by the antennomere III longer than scape (shorter in P. diminutus ). See remarks under P. poriferus and P. skillmani sp. nov.

Description. Holotype Female. Integument mostly black; palpi mostly brown; antennae dark brown.

Head. Frons coarsely rugose-punctate; with minute pale yellowish-brown pubescence not obscuring integument, and short, erect, spatulate yellowish-brown setae interspersed. Antennal tubercles coarsely punctate basally, punctures finer and shallower than on frons, except smooth apex; with abundant pale-yellowish pubescence and short, erect, spatulate pale yellowish-brown setae interspersed, except glabrous smooth area. Vertex abundantly, coarsely punctate, except smooth median groove; with abundant pale yellowish-brown pubescence partially obscuring integument, except glabrous median groove, and a few very short spatulate yellowish-brown setae interspersed. Area behind eyes with sculpturing, pubescence and erect setae as on vertex, pubescence slightly sparser behind lower eye lobes. Genae coarsely rugose-punctate; 3.18 times width of lower eye lobe; with pale yellowish-brown pubescence not obscuring integument, and short, erect, spatulate setae of same color interspersed. Wide central area of postclypeus with pale yellowish-brown pubescence not obscuring integument, and short, erect, spatulate setae of same color interspersed close to frons, and long, sparse brownish setae directed forward close to anteclypeus. Labrum abundantly, minutely punctate, with a few coarse, shallow punctures interspersed posteriorly; almost glabrous on wide central area, with yellowish pubescence laterally. Eye lobes with a single ommatidium between them; distance between upper eye lobes 0.48 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.81 times distance between outer margins of eyes; lower eye lobes longer than wide (1.8 times). Antennae 1.1 times elytral length, not reaching posterior third of elytra. Scape with minute brownish pubescence not obscuring integument, and moderately abundant, arched, spatulate, both yellowish and whitish setae interspersed. Pedicel glabrous basally, with abundant pale yellowish-brown pubescence partially obscuring integument. Antennomere III slightly arched; with abundant yellowish-white pubescence on basal quarter and apex, pale yellowish-brown pubescence on remaining surface; with short, arched, squamiform yellowish-white setae interspersed. Antennomere IV with pubescence as on III, and short, arched yellowish-white setae interspersed (laterally, some of them spatulate but shorter and sparser than on III). Antennomeres V–VIII with yellowish-brown pubescence partially obscuring integument. Antennomeres IX–XI with yellowish-brown pubescence partially obscuring integument basally, pubescence whitish, denser on remaining surface, especially on X and XI. Antennal formula (ratio) based on length of antennomere III: scape = 0.95; pedicel = 0.21; IV = 0.57; V = 0.25; VI = 0.23; VII = 0.21; VIII = 0.21; IX = 0.21; X = 0.19; XI = 0.25.

Thorax. Prothorax slightly wider than long; sides rounded. Pronotum coarsely punctate, with irregular surface; with three irregular, slightly elevated gibbosities on center of disk, one centrally on anterior third, one centrally on posterior quarter, one on each side of anterior third (together cross-shaped); with abundant, minute yellowish-brown pubescence not obscuring integument, and short, spatulate brownish setae interspersed. Sides of prothorax coarsely rugose-punctate; with abundant yellowish-brown pubescence not obscuring integument, pubescence gradually shorter toward prosternum, and short, spatulate brownish setae interspersed. Prosternum coarsely punctate, punctures slightly shallower centrally; with yellowish-brown pubescence distinctly not obscuring integument. Prosternal process sparsely, coarsely punctate; narrowest area, located near base, 0.25 times procoxal width; with yellowish-white pubescence not obscuring integument. Mesanepisternum and mesepimeron coarsely punctate; central area of mesoventrite with a few coarse punctures; sides of mesoventrite, superior area of mesanepisternum with dense pale yellowish-brown pubescence; central area of mesoventrite, remaining surface of mesanepisternum, and mesepimeron with yellowish-white pubescence distinctly not obscuring integument. Mesoventral process slightly widened from middle, sparsely, coarsely punctate; apex 0.39 times mesocoxal width; with pale yellowish-brown pubescence not obscuring integument. Metaventrite coarsely punctate laterally, except smooth area close to metacoxal cavities, smooth centrally; with minute pale yellowish-brown pubescence not obscuring integument, except smooth area.

Elytra. Sub-ovoid; abundantly, coarsely, deeply rugose-punctate; with irregular, moderately elevated gibbosities, more elevated on dorsal area of posterior half, some of them fused by irregular carina; with yellowish-brown pubescence not obscuring integument, pubescence denser on some areas, absent on others, and short, sparse, arched, spatulate yellowish-brown setae interspersed, slightly more abundant posteriorly. Legs. Femora with abundant, minute pale yellowish-brown pubescence partially obscuring integument, and yellowish-white squamiform setae interspersed. Tibiae with dense pale yellowish-brown pubescence obscuring integument, except glabrous narrow apical region, ventral posterior third of protibiae with dense, bristly yellowish-brown pubescence, dorsal sulcus of mesotibiae with abundant, short, erect yellowish-brown setae, and dense fringe of thick yellowish-brown setae on apical margin of all tibiae; with somewhat abundant, short, erect, spatulate yellowish-white setae interspersed.

Abdomen. Ventrites with minute pale yellowish-brown pubescence not obscuring integument, pubescence sparser and shorter on basal half of ventrite 3 and wide central area of ventrite 4, and a few short spatulate setae of same color interspersed.

Dimensions in mm (holotype female/ paratype female). Total length, 7.50/7.70; prothoracic length, 2.25/2.35; anterior prothoracic width, 2.10/2.00; posterior prothoracic width, 2.30/2.35; maximum prothoracic width, 2.55/2.70; humeral width, 2.45/2.60; elytral length, 4.80/4.90.

Etymology. The species is named in honor of the late Charles W. O’Brien, collector of the holotype.

Figures

FIGURES 18–21. Phrynidius obrieni sp. nov., holotype female: 18) Dorsal habitus; 19) Ventral habitus; 20) Lateral habitus; 21) Head, frontal view.