1977] 
Hubbard & Riek — Triassic Mayfly 
261 
We thank the Cooperative State Research Service, U.S.D.A., 
PL 89-106, for partial financial support. 
Literature Cited 
Demoulin, G. 
1968. Deuxieme contribution a la connaissance des Ephemeropteres de 
Fambre oligonene de la baltique. Dtsch. Entomol. A., N.F., 15 : 
233-276. 
Riek, E. F. 
1976. An unusual mayfly (InsectaiEphemeroptera) from the Triassic of South 
Africa. Palaeontol. Afr. 19 : 149-151. 
