Mr. W. L. Distant on Homoptera. 187 



rays of a darker colour and covered with a smooth periostra- 

 curn ; teeth small, the cardinal tooth on rif>ht valve bifid; 

 posterior side obtusely rounded above, angled below ; anterior 

 side sharply rounded ; dorsal margins very gradually sloping; 

 ventral margin angled, somewhat produced centrally. 



Long. 13', lat. 20-5 mm. 



Hub. Podor, Senegal River. 



Allied to F. Icevigata, von Mts.^ but differing from that 

 species by its angular and ])roduced ventral margin, more 

 sharply rounded anterior side, and more obtuse posterior 

 side ; moreover, the bifid cardinal tooth in the right value 

 immediately distinguishes it from F. laevigata. 



EXPLANATION OF PLATE VII. 



Fig. 1. Oibhvs {'Edentulina) confusa, sp. n. 

 Figs. 2, 3. Helicarion bitzeensis, sp. n. 



Figs. 4, 5. unibrosolabinta, sp. n. 



Fig. 6, Thapda rosenhergi, sp. n. 

 Fig. 7. Achatina dacosfana, sp. n. 



Fig. 8. subcglindrica, sp. n. 



Fig. 9. Callistoplepa tiara, sp. n. 

 Fig. 10. Pseuduchntina nodosa, sp. n. 



Fig. 11. nodosa, var. eminens, nov. 



Fig. 1 2. Pseudotrochus batesi, sp*. n. 



Fig. 13. efiilenensis, sp. n. 



Fig. 14. P.'ieudoglessula camerunensis, sp. n. 

 Fig. 15. Hvmorus foveolatus, sp. q. 

 F'ig. 10. Suhnlinn jaensis, sp. n. 

 Fig. 17. Fisclieria messageri, sp. n. 

 Fig. 18. appro.vimans, sp. n. 



XXlI.—R/iynchotal Notes.— XhYl. By W. L. Distant. 



Homoptera. 



Fam, Cercopidse. 



Neotropical Genera and Species. 



The Neotropical Cercopidse are well represented in the 

 British Museum. In addition to those described by Walker 

 it possesses the splendid Godman Collection from Central 

 America worked out and desciibed by Fowler. It has also 

 during recent years acquired a large number of species from 

 Ecuador and Bolivia, many of which are here described. 

 The Fry Collection, bequeathed to the British Museum by 



13* 



