144 A Revision of the Old World Cyrtacanthacrini, 



40 (41), Discoidal field of elytra scarcely trans- 



parent, the veinlets being iucrassate 



and confluent, and the membrane 



corneous. Hind tibiae with 8 outer 



and 11 inner spines. Male sub- 



geiiital plate acutely conical. Wings 



coloured. (Africa ; genotype, Gnjllus [g^^' nov. 



Locusta cyaneus, Stoll.) 20. Glaphyra, 



41 (40). Discoidal field of elytra more or less 



transparent, the veinlets being not at 

 all or but slightly incrassate, and the 

 membrane hyaline. 



42 (49). Pronotum smooth or punctured, but not 



tuberculate. Upper carina of the 

 externo-median area of hind femora 

 convex (as in fig. 7, a, h). "Wings not 

 coloured. 



43 (44). Median keel of pronotum strongly raised 



in the prozona and thick. Male sub- 

 genital plate trilobate apically. Hind 

 tibise with 6 outer and 9 inner spines. 

 (Africa : genotype, Grylhis ruficornis, [nov. 



F.) 21. Aeanthacris, gen. 



44(43). Median keel of pronotum low or but 

 slightly raised, not thick. Male sub- 

 genital plate not trilobate. 



45 (46). Disc of pronotum smooth and velvety. 



Male subgenital plate acutely conical. 



(Africa, Asia : genotype, Gryllus Lo- [Walk. 



custa tartaricus, L.) 22. Cyi'tacanthactis, 



46 (45). Disc of pronotum punctured, not velvety. 



47 (48). Male subgenital plate pyriform, with the 



apex acute. (Africa, Arabia : geno- [nov. 



type, Cyrtacanthacris prasina, Walk.) 23. Kraussaria*,gen. 

 48° (47). Male subgenital plate acutely conical. 



(Madagascar : genotype, Acridium [nov. 



ranavaloe, Finot.) 24. Finotina t, gen. 



49 (42). Pronotum densely covered with tubercles 



and rugosities. Upper carina of the 



externo-median area of hind femora 



straight or practically so (fig. 7, c). 



Hind tibise with 9 outer and 11 inner 



spines. Male subgenital plate conical. 



Wings coloured. (Africa, Asia : geno- [nov. 



type, Acridium roseum, De Geer.), ... 25. Chondracrts,gQn. 



50 (1). Pronotum cylindrical, with four trans- 



verse sulci. Wings in the shape of 

 a quarter of a circle, scarcely longer 

 than broad. (Australia: genotype, 

 Loiter ia rubi'ipes, Sjost.) 26. Loiteria, Sjcist. 



[To be continued.] 



* Dedicated to Dr. Hermann Krauss, leading authority on Orthoptera. 

 t In remembrance of A. Finot, first reviser of the group. 



