20 University of Michigan 



PLATE I 



Wing photographs by Miss Mina L. Winslow. All figures of males, 

 two figures of each species to show the extremes in wing coloration. 



Fig. I. Celitheviis viartha, male, Manchester, Maine, July 26, 1897, 

 Miss Mattie Wadsworth, U. S. N. M. 



Fig. 2. Cclithemis martha, male, Long Pond, Wading River, Long 

 Island, New York, July 31, 1919, W. T. Davis. 



Figs. 3 and 4. Celithcmis ornata, males, Enterprise, Florida, April 

 25 and 18, 1921, J. H. Williamson. 



Figs. 5 and 6. Cclithemis bertha, males, Enterprise, Florida, April 

 21, 1921, J. H. Williamson. 



