124 



CICADID.'E. 



Em a th let esq rot a. 



1617. Emathia aegrota, <Sya/, Berl. etit. Zeit. 1866, p. 172; Atkins. 

 J. A. >S. Bear/, liii, p. 229 (1885) ; Dist. Mon. Orient. Cicad. 

 p. 133, t. xii/f. 3, «, b (189->). 

 Tibiceii aureiigzebe, Bid. Tr. E. S. 1881, p. 646; Atkins. J 

 A. S. Beng. liii. p. 231 (1884). 



Body above dull dark ocliraceous ; head with narrow marginal 



striae to front and the 

 margins of ocelli black ; pro- 

 notum with a central longi- 

 tudinal sulcation, on each 

 side of which is a small fus- 

 cous spot at anterior mar- 

 gin, and behind which is a 

 fuscous spot on posterior 

 margin, the incisures also 

 fuscous ; mesonotum with 

 two short central obconical spots, a long sublateral and somewhat 

 broken fascia on each side, and two small spots in front of 

 cruciform elevation piceous ; abdomen with the posterior segmental 

 margins narrowly and obscurely paler ; body beneath and legs 

 concolorous with upper surface ; centre of face, metasternum, 

 disk and apex of abdomen, streaks to femora, bases and apices of 

 tibiae, and apical joints of tarsi fuscous ; tegmina and wings hyaline ; 

 tegmina with costal membrane and basal half of venation ochra- 

 ceous, remaining venation fuscous, transverse veins at bases of 

 second and third apical areas apical transverse vein to radial area, 

 and apical vein to lower ulnar area more or less infuscated, and 

 usually a small subapical fuscous spot ; wings with the transverse 

 vein at base of upper apical area and the margins of abdominal area 

 infuscated. 



Length excl. tegm., c? , 18 ; exp. tegm. 48 millim. 

 Hah. Bombay {Dixon), Khandala {Coll. Dist.). 



Genus RUSTIA. 



Ptustia, Sta/, Hem. Afr. iv, p. 8 (1866) ; Bist. Mon. Orient. Cicad. 

 p. 125 (1892). 



Type, R. dentivitta. Walk. 



Distribution. Oriental Region. 



Head a little shorter than pronotum, including eyes about as 

 wide as base of mesonotum, its lateral margins discontinuous, 

 lateral margins of vertex not iu line with those of front, the 

 vertical angles globosely produced, eyes somewhat pedunculate, 

 ocelli much farther apart from eyes than from each other ; pronotum 

 as long as mesonotum, its lateral margins nearly straight, a little 

 sinuate, its posterior angles slightly recurved ; abdomen longer 

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

 tympanal coverings very small, both narrower and shorter than 

 the tympanal cavities ; opercula in male very small, not covering 

 the cavities ; rostrum reaching the posterior coxae ; anterior femora 



