''Ridiaschina'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

moth genus in the family

Cecidosidae Cecidosidae is a family of primitive monotrysian moths in the order Lepidoptera which have a piercing ovipositor used for laying eggs in plant tissue in which they induce galls, or they mine in bark (Davis, 1999; Hoare and Dugdale, 2003). Nine sp ...

described by

Juan Brèthes Juan (Jean) Brèthes, also known as Frère Judulien Marie or Juan Brethes (24 February 1871 in Saint-Sever, Landes – 2 July 1928 in Buenos Aires) was an Argentine scientist, naturalist, entomologist, ornithologist, zoologist and geologist. He ...

in 1916. Its only species, ''Ridiaschina congregatella'', described by the same author one year later, is found in Argentina.

References

Moths described in 1917 Heliozelidae Moths of South America Monotypic moth genera Taxa named by Juan Brèthes {{Heliozelidae-stub