Abstract
The genus Villalobosothignus Brailovsky, 1984 is diagnosed, and Ashlockobius Slater & Slater, 1999 is synonymized with it. A new arboreal species of Villalobosothignus from Ecuador is described, and photographs of the adult and male genitalia are provided together with illustrations of certain diagnostic characters to facilitate identification. Brailovsky (1984) described the new genus and species Villalobosothignus figueroai (Myodochini), based on two males from Venezuela. Some years later, Slater and Slater (1999) described, on the basis of one male, also from Venezuela, the genus and species Ashlockobius cursorius. When describing Ashlockobius, Slater and Slater (1999) overlooked Brailovsky's paper (J. A. Slater, personal communication). In 2003,the first author (Dellape 2003) described the second species of Ashlockobius, A. bipuntatus, mentioning that: "The species of Ashlockobius closely resemble Villalobosothignus figueroai ... It is very possible that these two genera will prove to be congeneric, in which case Villalobosothignus will have priority." Recently, we have been able to study photographs of the para-type of V. figueroai and specimens of Ashlockobius which has led to the conclusion that these species are, in fact, congeneric.