290 PROCEEDINGS OF THE AMERICAN ACADEMY. 



EXPLANATION OF THE PLATE. 



The drawings were made by Mr. J. W. Folsom, and, excepting the last, repre- 

 sent the lateral view of the extremity of the abdomen of the male, and a dorsal 

 view of the anal segment, both enlarged. 

 Fig. 1. Scudderia texensis. 

 " 2. " pistillata. 



" 3. " eurvicauda. 



" 4. " laticauda. 



" 5. " mexicana. 



" 6. " ungulata. 



" 7. " furcifera. • 



" 8. " furcata. 



" 9. " septentrionalis. 



" 10. " forcipata. The end of the male abdomen from above; 



and the subgenital plate from below. Copied from the 

 Biologia. 



