On the spider genus Arboricaria with the description of a new species (Araneae, Gnaphosidae) Author Mikhailov, Kirill G. text ZooKeys 2016 558 153 169 http://dx.doi.org/10.3897/zookeys.558.6521 journal article http://dx.doi.org/10.3897/zookeys.558.6521 1313-2970-558-153 7D7D5188B5364661A16138270FC68EF6 Taxon classification Animalia Araneae Gnaphosidae Micaria Westring, 1851 Remarks. Type species. Micaria fulgens (Walckenaer, 1802), originally described as Aranea fulgens . Diagnosis. Gnaphosids of the " Micaria -group" ( Murphy 2007 ), differing from Arboricaria by the more or less ovoid, posteriorly not truncate sternum in both sexes, the ovoid, not bulging bulbus with a mostly present median apophysis, the palpal tibial apophysis, sometimes poorly expressed, not bifid in males, the epigynal groove in females, if present, without distinctly chitinized posterior margins. Composition. 101 species ( WSC 2015 ). Distribution. Holarctic. Other records require confirmation. An analysis of the new Micaria species described from the Palaearctic since Bosmans and Blick (2000) , all listed in WSC (2015) , shows no match with Arboricaria characters. Therefore, despite the previous neglect of Arboricaria , no new species of this genus have been described within Micaria sensu lato since 2000. In addition, all extra-Holarctic records of Micaria are doubtful; these species most likely belonging to other genera or even families ( Murphy 2007 ).