74 JOUBNALi OF ENTOMOLOGY AND ZOOLOGY 



EXPLANATION OF PLATES 



Figure 1. Pyrgonata bifoUata Westw. 



Figure 2. Tricentrus pilinervosus sp. nov. 



Figure 2a. Tricentrus pilinervosus sp. nov. Cephalic view. 



Figure 3. Centrotosceliis typus sp. nov. 



Figure 4. Hind trochanters Centrotoscelus typus. 



Figure 5. Sijtylus nodipennis sp. nov. Dorsal view. 



Figure 6. Fore-wing Oargara tuberculata sp. nov. 



Figure 7. Oargara luteipennis sp. nov. Cephalic outline. 



