10 University of Michigan 



PLATE II 



Figures 6 and 7. C. exile canadense Clapp. Prom type lot. G. H. 

 Clapp. 



Figure 8. C. exigtium Say. Side view. 



Figure 9. C. exiguum. Edgeworth, Pennsylvania. G. H. Clapp. 



Figures 10 and 11. C. exiguum. Edgeworth, Pennsylvania. G. H. 

 Clapp. 



