Psapharochrus bezarki, Santos-Silva, Antonio & Galileo, Maria Helena M., 2016

Santos-Silva, Antonio & Galileo, Maria Helena M., 2016, New Brazilian Cerambycidae from the Amazonian region (Coleoptera), ZooKeys 603, pp. 131-140 : 132-133

Taxon classification Animalia Coleoptera Cerambycidae

Psapharochrus bezarki sp. n. Figs 1-5

Description.

Holotype female. Integument dark-brown; mouthparts reddish-brown, except for palpi mostly dark-brown.

Head. Frons moderately coarsely, sparsely punctate; with ochraceous pubescence on wide band on each side of longitudinal sulcus, longitudinal lateral wide band connected to transverse band below antennal tubercles and narrow band around eyes; remaining surface glabrous or nearly so. Area between antennal tubercles moderately, coarsely punctate laterally, smooth centrally; with ochraceous pubescence close to antennal tubercles, glabrous centrally. Vertex moderately, coarsely punctate between upper eye lobes, impunctate on remaining surface; on each side with large, elliptical macula with brown pubescence, surrounded laterally and posteriorly with dense, yellowish pubescence (becoming wider behind upper eye lobe); remaining surface with slightly conspicuous brownish pubescence. Area behind eyes microsculptured on wide band close to eye, moderately, finely, abundantly punctate on remaining surface; glabrous, except for narrow pubescent band close to eye. Genae transversely striate laterally, very finely striate and punctate toward frons; with short, ochraceous, sparse setae, except for narrow band close to eye. Submentum with transverse, narrow central carina; microsculptured, with short, ochraceous pubescence. Antennal tubercles mostly glabrous, impunctate. Longitudinal sulcus distinct from clypeus to anterior margin of prothorax. Distance between upper eye lobes 0.55 times length of scape; distance between lower eye lobes in front equal to length of scape. Antennae 1.4 times elytral length; reaching elytral apex; scape with brownish pubescence, maculate with ochraceous pubescence; antennomeres III–IV with yellowish-white pubescence on base and transverse band before apex, remaining surface with brownish pubescence; antennomeres V–X with yellowish-white pubescence on basal third, brown on distal third (gradually widening toward X); antennomere XI with yellowish-white pubescence; antennal formula based on antennomere III: scape = 0.70; pedicel = 0.18; IV = 0.71; V = 0.51; VI = 0.41; VII = 0.37; VIII = 0.32; IX = 0.31; X = 0.26; XI = 0.26.

Thorax. Prothorax 1.8 times wider than long (including lateral tubercles); lateral tubercles, large, conical, with blunt apex. Pronotum coarsely, deeply, sparsely punctate, finer, denser on each side of central tubercle; with three distinct tubercles: one on each side, very large, reniform; another centrally, triangular at base, carina-shaped toward apex; with ochraceous pubescence, denser on some regions, absent or nearly so on others. Sides of prothorax coarsely, moderately abundantly punctate; with yellowish-white, dense pubescence, less so near anterior margin. Prosternum impunctate; with yellowish-white pubescence laterally and close to coxal cavities. Prosternal process wide, centrally distinctly wider than base of peduncle of profemora; with yellowish-white pubescence, not obscuring integument. Mesosternum microsculptured, except for smooth, transverse anterior band; with short, moderately sparse, ochraceous pubescence, but glabrous on smooth region. Mesepisterna, mesepimera, and metepisterna with dense yellowish-white pubescence. Metasternum with dense yellowish-white pubescence; centrally rubbed in the holotype. Scutellum centrally depressed distally; distal lateral sides distinctly elevated; with brown pubescence, except for narrow yellowish band at apex.

Elytra. Sides slightly convergent toward distal third, then gradually curved toward apex; with distinct tubercle on each side of scutellum; without distinct carinae; coarsely, sparsely punctate; central area of disc on basal third mostly glabrous; remaining surface of basal 2/3 with ochraceous pubescence, mixed with brown and white pubescence (laterally, on center of this region, with distinct, oblique band of brown pubescence); with zig-zag, transverse band of brown pubescence about beginning of distal third (not reaching suture); with transverse band of brown pubescence on distal quarter; along suture, with rounded spots of brown pubescence; remaining surface of distal third with ochraceous pubescence mixed with brown and white pubescence; apex truncate, with outer angle slightly projected and sutural angle rounded.

Legs. Femora and tibiae with yellowish-white pubescence, except for golden pubescence on dorsal sulcus of mesotibiae and ventral apex of meso- and metatibiae.

Abdomen. Ventrites microsculptured; with yellowish-white pubescence (partially rubbed in the holotype); ventrite V with longitudinal, narrow, central sulcus on basal 3/4.

Variation.

Frons totally pubescent, but with glabrous area on holotype covered with short, yellowish-brown pubescence; pubescence on frons ochraceous, almost covering entire surface (except for elliptical brown macula); antennal tubercles mostly with ochraceous pubescence; scutellum centrally with wide, yellowish band of pubescence; elytral without glabrous area on basal third; pubescence on ventral side of body more ochraceous.

Dimensions in mm

(female). Total length (from mandibular apex to abdominal apex), 16.4-17.8; prothorax: length, 2.9-3.4; anterior width, 4.3-4.8; posterior width, 4.3-4.8; largest width, 5.4-6.1; humeral width, 6.3-6.9; elytral length, 11.5-12.7. The largest dimensions are those of the holotype.

Type material.

Holotype female from BRAZIL, Amazonas: Manaus (ZF2, km 14, Torre - 40 m high, 02°35'21"S / 60°06'55"W, light trap), 19-22.III.2004, J. A. Rafael, C. S. Motta, F. F. Xavier Filho, A. Silva Filho and J. T. Câmara col. (INPA). Paratypes - BRAZIL, Amazonas: Manaus (ZF2, km 14, Torre - 35 m high, 02°35'21"S / 60°06'55"W, light trap), female, 13-16.VIII.2004, J. A. Rafael, F. F. Xavier Filho, A. R. Ururahy, A. Silva Filho and S. Trovisco col. (MZSP); female, 9-12.XI.2004, C. S. Motta, A. S. Filho, S. Trovisco and L. S. Aquino col. (INPA).

Etymology.

The new species is named after Larry G. Bezark, for his contribution toward the knowledge of Cerambycidae , his friendship, and constant help.

Remarks.

Psapharochrus bezarki sp. n. is similar to Psapharochrus bimaculatus (Fuchs, 1959), but differs by the elytra more parallel-sided (distinctly more narrowed toward apex in Psapharochrus bimaculatus ), and by the presence of the zig-zag brown macula on the distal half of the elytra (absent in Psapharochrus bimaculatus ). It differs from Psapharochrus nigropunctatus (Tippmann, 1960) by the scutellum proportionally larger, longitudinally sulcate posteriorly (smaller and flat in Psapharochrus nigropunctatus ), and by the protibiae not laterally flattened (flattened in Psapharochrus nigropunctatus ). It can be separated from Psapharochrus lanei (Marinoni & Martins, 1978) by the lateral tubercles of pronotum reniform (subconical in Psapharochrus lanei ), by the scutellum larger and longitudinally sulcate posteriorly (smaller and flat in Psapharochrus lanei ), and by the lateral tubercles of prothorax with blunt apex (acute in Psapharochrus lanei ).