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i8. Hind tibia and tarsus of TcHgonia parthaon. 



19. The same of Eurymclias hyacinthus. 



20. The same of Philagra parva. 



Plate XII. 



I 

 2 



3 

 4 



5 

 6 



7 

 8 



9 

 10 

 II 

 12 

 13 

 14 

 15 

 16 



17 

 18 



19 

 20 

 21 



Tropidocephala dryas, vertex &c. 



Face of the same. 



The same in profile. 



Hind leg of the same. 



T. exiniius, vertex &c. 



Face of the same. 



The same in profile. 



Haplodclphax iitncicola, vertex &c. 



Face of the same. 



Hadeodclphax pliito, vertex &c. 



Face of the same. 



PerkinsicUa vastatrix, male pygophor (end on), 



The same (three-quarter view). 



P. sinensis, the same (end on). 



The same (three-quarter view). 



Delphax eiipompe, the same (end on). 



The same (three-quarter view). 



The same in profile. 



Meganielus proserpina, the same (end on). 



The same (three- quarter view). 



The same in profile. 



Plate XIII. 

 Male pygophors of Asiracidae, in two or three views. 



1-3. PerkinsieUa psendomaidis. 



4-6. Dicranotropis muiri. 



7-8. Peregnniis maidis. 



9-10. PerkinsieUa viiiensis. 



11-13. P. saccharicida. 



14- 5. P. graminicida. 



Plate XIV. 



The same as the preceding : 



1-3. Delphax alhotristriatus. 

 4-6. Anectopia mandane. 



