Cinygmulasubaequalis je druh jepice z čeledi Heptageniidae. Žije v na jihovýchodě a severu Kanady, na východě Spojených států amerických a na Aljašce. [1 ] [2 ] Jako první tento druh popsal Banks v roce 1914. [3 ] [4 ]
Cinygmulasubaequalis is a species of flatheaded mayfly in the family Heptageniidae. It is found in southeastern, northern Canada, the eastern United States, and Alaska. [1 ] [2 ] [3 ] [4 ]
Cinygmula is a genus of flatheaded mayflies in the family Heptageniidae. There are at least 30 described species in Cinygmula. [1 ] [2 ] [3 ] [4 ] [5 ]
For species not included in Hilsenhoff's listing, such as Oligochaeta, values were assigned based on water quality data from Stream Biomonitoring Unit surveys and from other literature references.