[EN] A new species from the genus Xenillus is described. It is well characterized by: presence of a triangular tubercle behind the rostral margin. The lamellar cusps end in two rounded angles. The internal angle more developed, and slightly curved outwards. The tutorium is well developed. It forms a ribbon at each side of the prodorsum, from the bothridium to the level of the lamellar cusp. The sensillus is constituted by a stalk that becomes wider and forms rounded-edged head. All the surface is covered with thorns, being the head thorns the most developed. Dorsal and ventral setae with very thin cilia, very difficult to observe. The notogastral and the ventral surfaces are rugose.

[ES] Se describe una nueva especie del género Xenillus, que se diferencia de las restantes especies del género por la presencia de un tubérculo triangular por debajo del borde rostral, cúspides lamelares de extremos redondeados, tutorium bien desarrollado, sensilo recubierto de espinas en toda su superficie, setas dorsales y ventrales provistas de cilios muy finos, y superficies dorsal y ventral rugosas.

Peer reviewed