|   | 
|  Kingdom Animalia | 
|   | 
Acroneuria perplexa Frison, 1937 – valid
 | 
|   | 
Capnia distincta Frison, 1937 – invalid
 | 
|   | 
Capnia projecta Frison, 1937 – invalid
 | 
|   | 
Capnia promota Frison, 1937 – valid – Pacific Snowfly
 | 
|   | 
Diura knowltoni (Frison, 1937) – valid
 | 
|   | 
Haploperla orpha (Frison, 1937) – valid
 | 
|   | 
Isoperla pinta Frison, 1937 – valid
 | 
|   | 
Leuctra forcipata Frison, 1937 – invalid
 | 
|   | 
Mesocapnia projecta (Frison, 1937) – valid – Spined Snowfly
 | 
|   | 
Nemoura tuberculata Frison, 1937 – invalid
 | 
|   | 
Paraleuctra forcipata (Frison, 1937) – valid
 | 
|   | 
Sweltsa occidens (Frison, 1937) – valid
 | 
|   | 
Utacapnia distincta (Frison, 1937) – valid | 
        
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