286 Annals of the Carnegie Museum. 



bb. Tarsi without pulvilli beneath; inserting angle of the posterior femora 

 situated on the inner side Raphidophorida. 



Family PHANEROPTERID^. 



The family known as Phaneropteridae is a very large one and is 

 distributed throughout the warmer countries of the globe, where its 

 representatives are among the commoner and more conspicuous 

 orthopterous insects to be met with at almost every turn. In tropical 

 American regions they are especially numerous. Most of these 

 insects are green or greenish in color, and live among the rank growth 

 of vegetation always found in the humid sections. Many of the 

 species are attracted to bright lights after nightfall, hence are quite 

 readily collected. Others may be taken by beating and sweeping the 

 foliage of trees and the herbage growing at the borders of forests, 

 groves, and the margins of streams. Still others live upon the 

 trunks of trees, on ledges of rocks, and the ground, mimicking their 

 surroundings in color. Upwards of seventy-five genera are known 

 from tropical American regions alone. These may be separated as 

 follows: 



Synopsis of South American Genera of Phaxeropterid^. 

 A. Anterior coxae not armed externally with a spine. 



b. Pronotum smooth, without a humeral sinus. Tegmina lobate. 



c. Anterior femora slightly more than one-half again as long as the prono- 

 tum. Pronotum with the last transverse sulcus situated back of its 

 middle, the hind margin truncate, or broadly emarginate. Left 

 elytron of cf with a plicate vein crossing the disc . . . Isophya Brunner. 

 cc. Anterior femora twice as long as, or longer, than the pronotum. 



d. Pronotum without lateral carinae. Ovipositor moderately com- 

 pressed, sensibly narrowed at the base, and with both margins 

 acutely serrate-dentate towards the apex. 

 e. Plicate vein of the left elytron of the cf strongly oblique and sub- 

 obliterated Odonlurella Bolivar. 



ee. Plicate vein of the left elytron of the cf well defined and crossing 

 the disc. Genicular lobes of the hind femora acuminate. 



Angara Brunner. 

 dd. Pronotum with lateral carinae present. Ovipositor compressed, the 

 margins towards the apex very minutely crenulate. 



Xenica Brunner. 

 bh. Pronotum provided with a distinct humeral sinus. Tegmina fully de- 

 veloped. 

 c. Tegmina narrow, shorter than the wings, when the latter are present. 

 Wings acuminate. 



