TY  - GEN
AU  - Crass,R.S.
TI  - Mayflies (Ephemeroptera) collected by J. Omer-Cooper in the Eastern Cape Province, South Africa, with a description of a new genus and species (Notonurus cooperi)
PY  - 1947///
CY  - London
PB  - Royal Entomological Society
ER  -