Bianor angulosusBianor angulosus, is a species of spider of the genus Bianor. It is found in Sri Lanka, India to China, Vietnam, and Indonesia.TaxonomyIt was first described in 1879 by Ferdinand Karsch as Ballus angulosus, undergoing many name changes until in 1979 Dmitri Logunov transferred it to the new genus, ''Bianor.''