242 CONNECTICUT GEOL, AND NAT. HIST. SURVEY [Bull. 



Fig. 63. Ventral view of terminal segments of female abdomens of 

 Libellula i, 3 and 4, and Plathemis, 2. Accessory appendages in lateral 

 view, 5-1 1 Libellula species, 12, Plathemis lydia. 13. Tetragoneuria cyno- 

 sura. 14. Tramea Carolina; all greatly enlarged. 



