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. 



Fie;. 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. Saplurina reticulata, n. sp. 

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

 Fig. 13. Posterior antenna. 

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



