Abstract

The genus Alocodesmus Silvestri, 1896 (Polydesmida: Chelodesmidae: Batodesmini) currently comprises six valid species, three of which are recorded for Colombia, including Alocodesmus danielae Romero-Rincon and Alvear, new species, from Yondó, Antioquia Department. Two species are known from Panama and one from Venezuela. The new species differs from its congeners by having a spoon-shaped prefemoral process that is ventrally extended forming a conspicuous concave space with branch Z being shorter than branches X and Y. The identity of Alocodesmus hanseni Silvestri, 1898, previously of uncertain status, is revised, and the species is herein proposed as a new synonymy of A. gracilicornis (Brölemann, 1898), based on the examination of type material. A key to all species of the genus and a map of their type localities are provided.

Resumen

El género Alocodesmus Silvestri, 1896 (Polydesmida: Chelodesmidae: Batodesmini) actualmente comprende seis especies válidas, tres de ellas registradas en Colombia, incluyendo Alocodesmus danielae Romero-Rincon and Alvear, nueva especie, para Yondó, Departamento de Antioquia. Dos especies son conocidas para Panamá y una para Venezuela. La nueva especie difiere de sus congéneres por tener un proceso prefemoral en forma de cuchara que está ventralmente extendido formando un espacio cóncavo visible con la rama Z más corta que las ramas X y Y. La identidad de Alocodesmus hanseni Silvestri, 1898, previamente con estado incierto, es revisado, y la especie es aquí propuesta como una nueva sinonimia de A. gracilicornis (Brölemann, 1898), basado en la examinación del material tipo. Se provee una clave para todas las especies del género y un mapa de sus localidades tipo.

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