280 ruLGOEJu.i:. 



Genus STIBORUS. 

 Stibonis, Melich. Horn. Fattn. Ceylon, p. 50 (1003). 



Type, S. viridis, Melich. 



Disfrilmtion. Ceylou. 



Very much resembUng Ossa, but with the face broader than 

 long, whereas in Ossa the face is longer than broad ; posteiior 

 tibiae with three spines. 



As Dr. Meliehar has not figured the type of this genus, and as 

 I have unfortunately been unable to see a specimen, I have 

 thought it best to give only his differential characters from the 

 allied genus Ossa. 



1825. Stiborus viridis, McUch. Horn. Faun. Ceylon, p. 50 (1903). 



Green, face with three black spots, situate one on each anterior 

 angle, and one at the upper frontal border of the upper end of 

 the middle ridge ; tegmina hyaline with green veins ; abdomen 

 and legs green ; apices of claws and spines brown. 



Length, cJ & 2 , 7 millim. 



Hah. Ceylon ; Pei-adeniya {fide Meliehar). 



My only knowledge of this species is from the short description 

 given by Dr. Meliehar. 



Genus LEUSABA. 



Leusaba, Wall: J. Linn. Soc, Zool. \, p. 144 (1857) ; StSl, Hem. 

 Afr. iv. p. 188 (1866) ; Melich. Horn. Farm. Ceylon, p. 28 (1903). 



Type, L. marginalis, "Walk., from Borneo. 



Distribution. Oriental and Malayan Regions. 



Head narrower than pronotum, vertex subquadrate with its 

 margins carinate and the disk modei'ately concave ; face ampliated 

 posteriorly, centi'ally and marginally ridged, its anterior mai'gin 

 slightly rounded, its basal margin subtruncate ; clypeus centrally 

 ridged, its lateral margins simple ; pronotum slightly longer than 

 vertex, its anterior margin roundly produced, its posterior margin 

 angularly etnarginate, with four longitudinal carinse, the two 

 central contiguous, and one oblique on each lateral area ; meso- 

 notum tricarinate, the lateral cariuse conAorging anteriorl}^ : legs 

 rather long and slender, especially the posterior ones, of which the 

 tibia; have two long spines on their apical halves ; posterior tibiae 

 with the basal joint moderately long ; tegmina apically broadened, 

 of the three basal longitudinal veins the lowermost is alone forked, 

 two slightly oblique series of transverse veins dividing six subapical 

 areas and a series of many apical areas, some of the longitudinal 

 veins to the latter bifurcating towards their apices ; wings short 

 and somewhat narrow. 



Meliehar, from the absence of transverse veins to the costal 

 membrane, regards this genus as belonging to the Dictyopharhw: ; 

 but this is not an exclusive character to the Troinducliina', and it 

 appears evident, as St?d opined, that Leus(d>a belongs to the 

 latter subfamily. 



