Xylocaris hirsutus Botero, 2015

Botero, Juan Pablo, 2015, Review of the Genus Xylocaris Dupont, 1834 (Coleoptera: Cerambycidae: Cerambycinae), The Coleopterists Bulletin 69 (1), pp. 21-24 : 21-23

Xylocaris hirsutus Botero , new species ( Figs. 6–7 )

Description. Female. Head brownish orange. Mandibles orange with apex black. Scape brown with base orange; pedicel brown; antennomeres III-VI bicolored, orange with apex brown; antennomeres VII-XI brown. Prothorax orange, dark brown around disk of pronotum. Ventrally brownish red. Elytra orange, with dark brown spot in anterior quarter next to scutellum and brown, transverse band starting in the middle and extending to apical quarter. Pro- and mesofemora orange with brown apex, metafemora brown with orange base; tibiae and tarsomeres brown. Head with fine, sparse punctures. Upper eye lobes well-separated, distance between them equal to 4 times width of upper lobe. Genae and anterior ¾ of mandibles with dense, whitish pubescence. Antennae not exceeding elytral apices, only reaching apical fourth of elytra. Scape to antennomere IV with short pubescence, denser in ventral face, antennomeres V-XI with very fine, dense pubescence. Anterior region of pronotum with shallow punctation and sparse hairs; lateral region finally rough. Prosternum with dense, whitish pubescence, more sparse in middle. Mesepisternum, mesosternum, lateral region of metasternum, and metepisternum with dense, whitish pubescence; mesosternum and median region of metasternum with sparse, whitish hairs. Elytra with surface microsculptured with fine, sparse punctation; humeri rounded, with slight depressions; apices unarmed, rounded. Tibiae and tarsi with long, dense, whitish hairs.

Measurements. Total length = 13.6 mm; prothoracic length = 3.3 mm; prothoracic width at widest point = 3.8 mm; elytral length = 9.1 mm; humeral width = 4.5 mm.

Etymology. Latin hirsutus , meaning hairy, referring to the dense pubescence present ventrally.

Type Material. H o l o t y p e, A R G E N T I N A, Santiago del Estero, female, 1936, E.R. Wagner col. ( MNHN) .

Remarks. Xylocaris hirsutus differs from X. oculata by the anterior region of the pronotum with shallow punctures and short, sparse setae, the mesepisternum, mesosternum, lateral region of metasternum, and metepisternum with dense, whitish pubescence, the color pattern: head and ventral region brownish orange, pronotum and scutellum orange, pro- and mesofemora orange with brown apex and metafemora brown with orange base. In X. oculata , the surface of the pronotum is smooth, the ventral region lacks dense pubescence, and the head, prothorax, scutellum, ventral surface, and legs are black.

Figures

Figs. 1–7. 1) Xylocaris oculata, holotype, female; 2) Xylocharis elegantulus, holotype, female; 3) Trachyderes argentinus, holotype, female; 4) X. oculata, female, dorsal view; 5) X. oculata, female, ventral view; 6) Xylocaris hirsutus, dorsal view; 7) X. hirsutus, ventral view.