247 



on apical portion of face, with some very indistinct ones at base; 

 front legs dark brown, a small light mark at apex and one at base of 

 tibiae, hind legs lighter brown; thorax and abdomen dark brown 

 marked with lighter spots. Tegmina hyaline, veins light with small 

 brown granules, a light brown mark from apex of costal cell over 

 cross-veins and over cubital and last median apical cells, also fuscous 

 along the sides of third and fourth median apical veins. 



Length 2.8 mm. ; tegmen 3.3 mm. 



Hab. Macao, China. 



This is the first Oriental species of this genus. I have only 

 one American species for comparison, viz. : a brachypterous form 

 of P. uervatus; from this species it differs in having the forking 

 of the median facial keel reaching to the lower angle of eye, the 

 anterior legs flattened but not quite so wide. The neuration of 

 the tegmen is different from any other Delphacid with which 

 I am acquainted, there being three veins to the subcost-radial 

 system and an extra branch to the cubital system, the media 

 touching both the radia and cubitus ; a similar number of veins 

 is also plainly recognizable in the brachypterous P. nervatus. 



Sogatopsis gen nov. 

 Type, pratti. 



In profile face and vertex flattened, subangular at their junction. 

 Head narrower than thorax; vertex longer than wide, slightly nar- 

 rowed towards apex, divided from face by an indistinct, wide V-shaped 

 keel, a very obscure median keel bifurcate at apex, disk concave, 

 base truncate; length of face nearly three times the breadth, sides 

 parallel, tricarinate; clypeus shorter than face, tricarinate, genal keel 

 distinct, running from beneath antenna to meeting of facial and 

 clypeal lateral keels; antennae longer than face, first and second joints 

 of equal length, first joint triangular in section, second cylindrical. 

 Pronotum tricarinate, lateral carinae slightly diverging, reaching 

 posterior margin, which is shallowly emarginate; scutellum tricarin- 

 ate, lateral carinae very slightly diverging, reaching posterior margin. 

 Hind tibia with one small basal, one small submedian and six small 

 apical spines, spur cultrate (not lamellate) straight on inner edge, 

 curved on outer, with one small apical tooth. Radial and median 

 cross-veins small but distinct. 



This genus is near to inKjoia but the antennae alone place it in 

 a different genus. 



(1) ^. pvatti sp. nov. ( 9 ) 

 Yellow or light brown marked with dark brown and black. Head 



