PLATE LXXV. 



Hyalopterus pruni. (Page 110.) 



Fig. 1. — Apterous viviparous female. 

 Fig. 2. — Winged viviparous female. 

 Fig. 3. — Head and antennae of the same. 



Hyalopterus arundinis. (Page 111.) 



Fig. 4. — Apterous viviparous female. 

 Fig. 5. — Winged viviparous female. 



