388 



MORPHOLOGY OF THE ABDOMEN IN THE ODONATA 



ZYGOPTERA. 

 Agrioninae : 



Agrion maculala .... 

 Lestinae : 



Lestes unguicululus . . 



PSEUDOSTIGMATIXAE : 



Mecisiogaster modest us 

 ANISOPTERA. 



GOMPHINAE : 



Hagenius brevistylus 



Gomphus cornutus . . . . 

 Aeshninae : 



Anax Junius 



Aeshna constrida 



LiBELLULINAE : 



Libellula pidcheUa .... 



Plathemis lydia 



[ Sympetrum semicinctum 

 Tramea Carolina 



1 An exponent indicate.s the nnmber of the segment measured. 



