A Review of the Spider Genusphilodromusin the Americas (Araneida: Philodromidae)

PhilodromusWalckenaer 1826 and its seven component species groups in the Americas are defined and diagnosed. The 12 species of theaureolusgroup are keyed, diagnosed, and mapped.P.obscurusBlackwail, 1871 is placed in synonymy underP.cespitum(Walckenaer, 1802).P.lutulentusGertsch, 1934 is raised to species status from synonymy underP.laticepsKeyserling, 1880, andP.eremusBuckle, 1973 is placed in synonymy underP.lutulentus.P.agreutesSchick, 1965 is placed in synonymy underP.californicusKeyserling, 1884, andP.decolorO. Pickard-Cambridge, 1899 underP.satullusKeyserling, 1880. The South American speciesP.fuliginosusNicoletinGay, 1849,P.juniorNicoletinGay, 1849, andP.meridionalisKeyserling, 1891 are removed to the genusPetrichus, andP.setosusPetrunkevitch, 1929 is removed to the genusThanatus, where it becomes a junior synonym ofT.vulgarisSimon, 1870.