444 Annals of the Carnegie Museum. 



j. Antennae with their basal joints de- 

 pressed, giving to these organs a 

 subensiform appearance. 



Parorphula Bruner. 

 jj. Antennae with the joints scarcely or not 

 at all depressed, filiform. 



Sis an tain Bruner. 

 ii. Tegmina narrow, their apex rounded; disk 

 of wings fuscous, the anterior border 

 apically black-banded. 



Orphalina Giglio-Tos. 

 hh. Apical third only of tegmina membranous; 

 wings clear or but little infuscated. 

 Antennae shorter. 

 i. Posterior tibiae with more (13-14) spines 

 in outer row; tegmina with a decided 

 humeral vitta; eyes rather large, but 



feebly bulging Parachloebata Bruner. 



ii. Posterior tibiae with fewer spines in the 

 outer row (10-11); tegmina without a 

 decided humeral vitta; eyes of moderate 

 size, somewhat bulging. 



Orphulella Giglio-Tos. 

 gg. Lateral carinae of pronotum but feebly developed on 

 the prozona when compared with those on the 

 metazona; eyes subglobular, large. 



Linoceratium Bruner. 

 ff. Lateral carinae of the pronotum not converging near the 

 middle, almost or quite as prominent as the median, 

 the sides of the pronotum not compressed at middle. 

 Tegmina and wings sometimes, but not always, ab- 

 breviated Dichromorpha Morse. 



ee. Fastigium of the vertex above rounded, provided with a 

 longitudinal median carina. 

 /. General color dark brown or fuscous varied with tes- 

 taceous. Wings strongly bordered with fuligi- 

 nous. Lateral carinae of pronotum faint and 

 irregular. 

 g. Wings with the anterior ulnar vein branched at base. 

 Antennae of male clavate. Humeral field of wings 

 not broadly scalariform or fenestrate. Wings 



red and black Toxopterus Bolivar. 



gg. Wings with the anterior ulnar vein not branched at 

 base. Humeral field of wing very broadly scalari- 

 form or fenestrate. Wings dull orange or sul- 

 phurous and black Peruvia Scudder. 



ff. General color green or testaceous. Lateral carinae of 



