Vol. 53, 2014
Revision of the spider genera Ariston O. P.-Cambridge, 1896 and Siratoba Opell, 1979 (Arachnida:
Araneae: Uloboridae) with description of two new species
Salvatierra1,2*, Ana Lúcia Tourinho1,3 and
Antonio D Brescovit4
de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA),
Avenida André Araújo, 2936, Aleixo, Cx. Postal 478, Manaus, AM
2Department of Biological Sciences, The George
Washington University, Washington D.C. 20052, USA
3Museum of Comparative Zoology, Department of
Organismic and Evolutionary Biology, Harvard University, 26 Oxford
Street, Cambridge, MA 02138, USA
4Laboratório Especial de Coleções Zoológicas,
Instituto Butantan, Av. Vital Brasil, 1500, São Paulo 05530-900, Brasil
Background: Ariston O.
P.-Cambridge, 1896 and Siratoba
Opell, 1979 are two poorly known genera of the spider family
Uloboridae, which together comprise six nominal species previously
described. This study provides an update of the taxonomic status for
both genera and the description of two new species for Ariston.
Results: The male of Ariston albicans O. P.-Cambridge, 1896 is
described and illustrated for the first time, based on specimens from
Chiapas, Mexico; Ariston reticens Gertsch & Davis, 1942
is transferred to Siratoba,
and Siratoba sira Opell, 1979 is considered its
junior synonym; Ariston spartanus n. sp. is described based
on male and female collected in Caicubi, state of Roraima, Brazil; and Ariston aglasices n. sp. is described based
on a female collected in Bonampak, Chiapas, Mexico.
Conclusions: An emended diagnosis
for Ariston and Siratoba and for each previously known species is
provided. In total, five species are recognized in Ariston, including
two new species, and two species are recognized in Siratoba.
Key words: New World; Mexico; Brazil;
Taxonomy; New species; Deinopoidea.
*Correspondence: E-mail: email@example.com