Order Araneida Clerck, 1757 - spiders Suborder Araneae Clerck, 1757 - tailless spiders Infraorder Opisthothelae Pocock, 1892 - unsegmented spiders Microorder Mygalomorpha Pocock, 1892 - mygalomorphs see [unranked] Mygalomorphae Pocock, 1892 Family Theraphosidae Thorell, 1869 - tarantulas and bird spiders Subfamily Aviculariinae Genus Heterothele Karsch, 1879