52 I \!'i w\ I'loN OF THE PLATES. 



PLATE \ l. 



Tramea lai 

 2. lram. a Carolina; a, appendages; b, the same, closed. 

 .'!. Cordulia flavoiuaculata. 



I Epitheea spec; a, end of abdomen from above; />, abdomen, side view. 

 5. Pantala flavescens; a. appendai 

 t'.. Cordulia 



