Fig. 



12. 



Fig. 



13. 



Fig. 



U. 



Fig. 



15. 



Fig. 



16. 



136 EXPLANATION OF THE PLAlTiiS, 



Lower foot-jaw, x 210- 



Upper foot-jaw, x 210. 



Foot of first pair, x 210. 



Abdomen and lower segments of cephalothorax, x 120. 



Foot of fifth pair, x 210. 



PLATE V, 



Tachidius brevicoenis. 



Fig. 1. Female seen from below, x 85. 



Fig. 2. Male seen from side, x 85. 



Fig. 3. Snperior antenna of male, x 400. 

 Fig. 4. ,, ,, female, x 400. 



Fig. 5. Inferior antenna, X 400. 



Fig. 6. Third foot-jaw, x 210. 



Fig. 7. Foot of second pair, x 210. 



Fig. 8. Extremity of abdomen, x 210. 



Fig. 9. Fifth foot of female, x 210. 



Delavalia palusteis. 



Fig. 10. Female seen from side, x 85. 



Fig. 11. Superior antenna of female, x 210. 



Fig. 12. Inferior antenna, x 210. 



Fig. 13. Foot of first pair, x 210. 



Fig. 14. ,, fourth pair, x 210. 



Fig. 15. ,, fifth pair, x 210. 



