Oxylymma pallida, Bezark, Antonio Santos-Silva Larry G. & Martins, Ubirajara R., 2012

Bezark, Antonio Santos-Silva Larry G. & Martins, Ubirajara R., 2012, New genera and species of Neotropical Rhinotragini (Coleoptera, Cerambycidae, Cerambycinae), Zootaxa 3571, pp. 66-80 : 76-77

Oxylymma pallida sp. nov.

( Figs 23–25 )

Diagnosis. Oxylymma pallida is similar to O. sudrei Peñaherrera-Leiva & Tavakilian, 2003 . It differs as follows: first dark elytral macula not “N-shaped” but uniformly oblique from near epipleura to near elytral suture close to scutellum ( Figs. 23, 25 ); antennomeres IV and V ( Fig. 23 ) less wide, and VIII–XI slightly differentiated in relation to VII (less distinctly narrowed). In O. sudrei : first dark elytral macula is “N-shaped,” starting along epipleura, rising towards humerus (without reaching it), down obliquely towards about middle region, and then rising almost vertically towards base (curved towards suture near scutellum); antennomeres IV and V ( Fig. 21 ) wider, and VIII– XI distinctly narrower than VII.

Etymology. The species name “ pallida ” refers to the pale yellow color and faint markings of the elytra.

Male ( Figs 23–25 )—Integument orange; head with a longitudinal brown band on each side of dorsal surface, between base of antennal tubercle and clypeus; two subtriangular brown maculae between superior ocular lobes; one oblique brown macula, starting at level of dorsal edge of superior ocular lobe, close to the prothorax, and finishing close to the gula; mandibles dark at apex; scape brown ventrally; pedicel and antennomeres III–VI brown; antennomeres VII–XI reddish-brown; prothorax with a subreniform light brown macula on each side, starting near middle of pronotum, and finishing near prosternum; pronotum on each side with a dark-brown sinuous band, starting near middle, and finishing about level of base of humerus (laterally wider); base of pronotum with brown band, projected towards apex of dark-brown band, and finishing close to procoxal cavity; elytron with three brown bands: one, basal, uniformly oblique band, from near epipleura to near elytral suture close to scutellum; another, slightly oblique from near epipleura to near suture, then subparallel to the suture, finishing close to apex of anterior band; the last one on distal half, slightly marked, oblique, starting almost at the middle, and finishing near suture; mesepisternum with a dark-brown band close to mesepimeron; metepisternum with a dark-brown oblique wide band, starting at basal fourth, and finishing at apex; metasternum with a short dark-brown band, continuing to that of metepisternum, and finishing about level of metacoxa; ventrites I–III laterally with a short subtriangular macula (less distinct on III).

Head moderately elongated and narrowed behind eyes; rostrum (between the apex of inferior ocular lobe and genal apex) about as long as scape. Rostrum with a longitudinal sulcus on each side, between base of antennal tubercle and clypeus; area between sulcus tumid; surface coarsely, deeply, confluently punctate; area between superior ocular lobes largely flat, coarsely punctate; dorsal surface of head with short, very sparse setae. Clypeus with short, sparse setae. Labrum with short, sparse setae on disc, more abundant at distal edge, laterally mixed with long setae. Outer surface of mandibles with one moderately short seta. Head laterally glabrous. Ventral surface of head with short, sparse setae. Eyes large, distinctly emarginate, almost horizontal. Distance between inferior ocular lobes equal to 0.5 times length of one lobe in frontal view. Antennae about as long as elytron, reach about elytral middle; gradually enlarged from antennomere III to V, narrowed from VI to XI.

Prothorax subglobular, with a deep transverse depression on base, distinctly convex at distal two thirds, slightly carinate on center of this region; sides rounded; with short, very sparse setae; convex area moderately abundantly, coarsely punctate. Prosternum coarsely, abundantly, partially confluently punctate. Prosternal process narrowed centrally, truncate at apex. Scutellum glabrous. Elytra with very short and sparse setae (more distinct at base); distal third distinctly dehiscent at suture; apex acute, reaches middle of fourth abdominal segment. Metasternum and metepisterna pubescent (slightly conspicuous), mixed with short setae. Ventrites with short, sparse setae. Metatarsomere I about as long as II–III together.

Dimensions in mm (holotype male). Total length, 12.5; prothorax: length, 2.0; anterior width, 1.7; posterior width, 2.3; humeral width, 3.0; elytral length, 6.8.

Type material. Holotype male from BRASIL, Rondônia: Ouro Preto do Oeste (INPA’s Reserve), III.25 – 28.1985, F. F. Ramos col. ( MZSP).

Figures

FIGURES 20 – 28. 20, Oxylymma durantoni, female, basal antennomeres and pronotum. 21 – 22, Oxylymma sudrei, basal antennomeres and pronotum: 21, male; 22, female. 23 – 25, Oxylymma pallida sp. nov., holotype male: 23, dorsal; 24, ventral; 25, lateral. 26 – 28, Acyphoderes violaceus sp. nov., holotype female: 26, dorsal; 27, ventral, 28, lateral. Photos 20 – 22 by Jean- Louis Giuglaris.