This small genus of four species is only found in Congo-Brazzavile, the Democratic Republic of the Congo, Botswana, Uganda, and Kenya. The most geographically widespread species, R. virgator, is also the only representative of the genus kept in captivity at this time.
Very little is known at this time about what has been billed as R. virgator in the hobby, other than that the specimens are quite fast and may appreciate some sand/clay in their substrates to form burrows. Breeding has not been confirmed. A few species sold by vendors in the United Kingdom under the name R. virgator are something else entirely as they bear no resemblance to the real Rhapidostreptus virgator and come from the wrong part of Africa (Cameroon).
R. virgator reaches to about 14 cm/5.5", has a black body with very interesting texturing on the segments that almost gives it a shimmery appearance, and brown-black legs.