Seira grisea . Species: Seira grisea (Womersley, 1934) Map: Reference: Womersley H (1934) On some Collembola-Arthropleona from South Africa and Southern Rhodesia. Annals of the South African Museum 30: 441–475. Coates TJ (1968a) The Collembola from South Africa – I: The Genus Neanura. Journal of the Entomological Society of Southern Africa 31: 185–195.