EMATHIA. 123 



c. Greatest widtli of tegmina 



only one-third of length, 



broader than wings TERrxosiA, p. 126. 



d. Greatest width of tegmina 



considerably more than one- 

 third of length, but scarcely 



broader than wings Sena, p. 134. 



b-. Length of head less than width 

 between eyes ; abdomen in S 

 about as long as space between 

 apex of head and base of 



cruciform elevation Cicadatra, p. 1-32. 



h. Opercula in c? short but well developed, 

 at least reaching apex of second or 

 base of third abdominal segment .... Khimbya, p. 139. 

 bb. Opercula in S extending beyond the 

 middle of abdomen. 

 aa' . Head not deflected anteriorly, the 

 front very prominent. 

 aa'-. Pronotum as long as mesonotum. Lethama, p, 142. 

 C. Tympanal coverings shorter, but not narrower 

 than tympanal cavities; head with the front 

 prominent, its lateral margins at riglit 

 angles Avith anterior margins of vertex. . . . Basa, p. 143. 

 Abdomen in c5' tuberculate beneath on the 

 second and third abdominal segments. 



a. Head about as long as half the width 



between eyes ; wings with six apical 



areas Calcagmnus, p. 137. 



b. Head as long as width between eyes ; wings 



with five apical areas Guuaba, p. 138. 



Genus EMATHIA. 



Emathia, Stal, Hem. Afr. iv, p. 8 (1866) ; Bist. Mon. Orient, dead. 

 p. 133 (1892). 



Type, E. ivfirota, Stal. 



Distribution. India. 



Head about as long as pronotum, including- eyes about as wide 

 as base of mesonotum, vertex longer than front, its lateral margins 

 discontinuous, that of vertex not in line with that of front ; 

 pronotum a little shorter than mesonotum, its lateral margins 

 straight, not am pliate, its posterior angles moderately ampliated ; 

 mesonotum with the disk convex ; abdomen short, about as long 

 as space between apex of head and base of cruciform elevation ; 

 tympanal coverings incomplete, narrower but scarcely shorter 

 than the the tympanal cavities, which are thus inwardly exposed ; 

 rostrum almost reaching the posterior coxse ; opercula in male 

 small, narrow, not extending beyond basal abdominal segment ; 

 anterior femora strongly spined beneath ; tegmina and wings 

 hyaline, the first with eight apical areas and the basal cell not 

 twice as long as broad. 



