136 



Mr. B. P. Uvarov— A Revision, of 



of generic value, although I have tried to avoid the intro- 

 duction of this character, which may be misleading, into my 

 key to genera. The number of spines on the hind tibiae 

 is not quite constant in the subfamily, but in some cases 

 it is a generic character. 



The number of genera thus separated out by purely 

 morphological characters may seem too large, and the genera 

 too restricted, but generic classification will be always to a 

 certain extent a matter of personal opinion, and 1 believe 

 that in a preliminary work like this revision (which is by no 

 means an exhaustive monograph) it is better to split the 



Fig. 3. 



Prosternal tubercle : a, Bryophyma dehilis (Karsch) ; b, Anacridium 

 csgyptium {h.) ; c, Fatang a ja20onica (Eol.) \ d,P.succincta(L.); 

 e, Valanga nigrieornis (Burm.) ; /, Finotina radama (Brancs.) ; 

 <7, Acanthacris ru/icorms citiina (Serv.) ; h, Glaphyra cydnea 

 (Stoll). X6. 



group into many small, but well-defined, genera than to 

 distinguish only a few genera with vague diagnoses. 



The specific classification, and especially synonymy, proved 

 to be the most difficult part of the work, as the majority of 

 the species had been founded on colour-characters only. 

 I think, however, that I have managed to clear up the con- 

 fusion in the synonymy of most species in a fairly satisfactory^ 

 way ; this proved to be possible only because I have had 

 l)efore me practically all the species of the group and a 

 great majority of the existing types. A very great advantage 



