PLATE VI. 

 [Proc. Wash. Acad. Sci., Vol. IV, PI. IV.] 



FIG. I. Neanura gigantea Tull. (X2)> 



2. " ornata, sp. nov. (X6o)- 



3. Anurida amorita, sp. nov. (X 'S). 



4. Isotoma viridis Bourl., type (X 1 3)' 



5. " , " var. arctica Schott (X ) 



[108] (106) 



