PLATE XLII. 



Figs. 1-8. Pseudothalestris imbricata, n. gen. and sp. 



Fig. 1 . Anterior antenna of male. 



Fig. 2. Inner branch of posterior antenna. 



Fig. 3. Posterior foot-jaw. 



Fig. 4. Foot of first pair. 



Fig. 5. Foot of second pair. 



Fig. 6. Foot of third and fourth pairs. 



Fig. 7. Foot of fifth pair. 



Fig. 8. Abdomen and tail. 



Figs. 9-16. Goniopsyttus rostratus, n. gen. and sp. 

 Fig. 9. Male, seen from the left side. 



Fig. 10. The same, seen from above; both magnified 80 diameters. 

 Fig. 11. Anterior antenna. 

 Fig. 12. Posterior antenna. 

 Fig. 13. a, Maxilla ; b, anterior foot-jaw. 

 Fig. 14. Posterior foot-jaw. 

 Fig. 15. One of the swimming feet. 

 Fig. 1 6. Fifth pair of feet. 



