Xylocaris Dupont, 1834

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

Xylocaris Dupont, 1834

Xylocaris Dupont in Audinet-Serville 1834: 47. Strauch 1861: 127; Thomson 1864: 210; Chenu 1870: 310; Monné 2005: 658, 2012: 63.

Xylocharis: Dupont 1838: 223 ; Lacordaire 1869: 205; Hüedepohl 1985: 133.

Trachyderes (Xylocharis) : Laporte 1840: 417.

Type Species. Xylocaris oculata Dupont, 1834 (monotypy).

Redescription. Upper lobes of eyes wellseparated, distance between them at least 3 times width of upper lobe. Antennal tubercles elevated and directed backwards. Antennae filiform in males, serrate in females, 11-segmented; antennomeres III-V (or also VI) bicolored, VI-XI black or dark brown; antennomeres gradually decreasing in length, in males segment XI longer than X. Prothorax transverse, males with sexual punctation, laterally with 2 tubercles, 1 antemedian and 1 postmedian. Disc of pronotum with transverse carina and 2 posterior elevations. Prosternum flattened. Scutellum lanceolate. Elytra subparallel at least in anterior ¾, twice as long as broad, glabrous; apices unarmed.

Remarks. Xylocaris is similar to Oxymerus Dupont, 1834 and Tuberorachidion Tippmann, 1953 by the flattened prosternum without a transverse sulcus and the sculpture of the pronotum (with a transverse carina). Xylocaris differs from Oxymerus by the pronotum with a strongly demarcated transverse carina and the unarmed elytral and meso- and metafemoral apices. From Tuberorachidion , it is distinguished by the short antennae at maximum reaching the elytral apices in both sexes, the sides of the prothorax with two tubercles, and the males with sexual punctation on the pronotum. In Oxymerus , the transverse carina is feebly demarcated, the elytral apices have an external spine, and the meso- and metafemora have an internal apical spine. In Tuberorachidion , the antennae exceed the elytral apices in both sexes, the sides of the prothorax are unarmed or with only one tubercle, and the males do not have sexual punctation on the pronotum.