ENT. NEWS, Vol. XXXIII. 



Plate III. 



18 A 



19 B 



20 C 



21 



r 



t, r sternum 



primary loniji 

 Stern, muse 



23 F ganglion \ ventra | diaphragm 



tr 



bse 



24 G ^ 



abdom cavity 25 H 



INCE5TA 



29 



INCfSTA 



PENES OF LIBELLULA. -KENNEDY. 



