250 

 CIXIINAE. 



1. Vertex angularly emarginate at apex Kirhijaua 



Vertex truncate at apex 2 



2. Vertex with a distinct transverse keel lA'i)toclami/s 



Vertex without a transverse keel 3 



3. Vertex with a distinct medio-longitudinal keel, 



quadrate, base subequal to apex Ptolcria 



Vertex without a medio-longitudinal keel, or with 



a very obscure one 4 



4. Vertex distinctly wider than long, base shallowly 



and roundly emarginate Aiistroloma 



Vertex not distinctly wider than long, base less 

 roundly emarginate 5 



5. Apex of vertex not perceptibly narrower than base Saccharias 

 Apex of vertex narrower than base, the median 



facial keel breaking the truncate outline of apex.. Dijstheatias 

 I cannot find the type material of Sacch arias among the late 

 Mr. Kirkaldy's collection, but I took specimens in Java which 

 I consider to be topotypes ; they agree with the specific descrip- 

 tion, his generic description being quite inadequate. 



The above six genera are closely allied, the first three are 

 easily distinguished, but the last three are very difficult to keep 

 apart ; their generic distinctions are not likely to bear the strain 

 that more extensive collecting will place upon them. 



Ptoleria Stal. 

 (1) P. (jramdinervis sp. nov. ( 5 9 ) 



Lateral carinae of scutellum sinuate. 



Light brown, the keels on head and thorax slightly lighter, dorsal 

 part of abdomen fuscous, front legs with faint fuscous rings on 

 femora and tibiae; tegmina light brown, small brown granules cover- 

 ing nerves, darker over stigmal spot; wings hyaline, slightly fuscous, 

 veins brown. Male pygophor laterally compressed, a large emargina- 

 tion on dorsal side in which the anal segment fits, lateral edges 

 sinuate, a small, rounded, median process; anal segment longer than 

 broad, anus a little beyond middle, beyond anus flattish, slightly 

 turned down, truncate at apex, a small, down-turned spine at each 

 apical corner; styles flattish, widest at apex, inner edge convex outer 

 edge concave, apex with a small point. 



Female slightly darker in color, with more infuscation over apical 

 portion of tegmina. 



Length 2.4 nun. ; tegmen 3.5 mm. 



Plab. Larat, Timor Laut Islands. 



