PLATE LI. 



Figs. 1—11. Onccea obtusa (Dana). 

 Fig. 1. Female, seen from right side; magnified 80 diameters. 

 Fig. 2. Abdomen of female, seen from the front. 

 Fig. 3. Abdomen of male, seen from the front. 

 Fig. 4. Anterior antenna. 

 Fig. 5. Posterior antenna. 

 Fig. 6. a, Mandible ; b, maxilla. 

 Fig. 7. Anterior foot-jaw. 

 Fig. 8. Posterior foot-jaw of female. 

 Fig. 9. Posterior foot-jaw of male. 

 Fig. 1 0. Foot of first pair. 

 Fig. 11. Foot of fourth pair. 



Figs. 12-14. Saphirina reticulata, n. sp. 

 Fig. 12. Male, seen from above; magnified 40 diameters. 

 Fig. 13. Posterior antenna. 

 Fig. 14. A caudal lamella, more highly magnified. 



