PL XIV. — Clambering and running mayflies of Family 

 BcBtince: i and 2, two species of Ephemerella which clamber 

 over trash in streams; 3, Ameletus, an active dweller in small 

 ponds. Nymphs of Epliemerincc: 4, Tricorytlms and 5, 

 CcEnis, which live in bottom sand and ooze; 6, Siphlunis, a 

 swift-moving dweller in small ponds. 



