PLATE XXXIV. 



Fig. 1. Dorsal aspect of male. (Photo.) 



Fig. 2. Dorsal aspect of male. (Photo.) 



Fig. 3. — Ventral aspect of male. (Photo.) 



Fig. 4. — Lateral aspect of female. (Photo.) 



Fig. 5. — Pachypsylla on bark of hackberry, showing protective markings. 



(Photo.) 

 Fig. 6. — Head, antennae, and mouth parts. (Photo.) 

 Fig. 7. — Photograph of head and antennae. 



Fig. 8. — Lateral aspect of mouth parts, removed from head. (Photo.) 

 Fig. 9. — Last four joints of antenna. 



