liKUNER : .South American Tetrigid/E. 133 



gently and roundly advanced in front of the eyes, the oblique carina? 

 blunt; frontal cosla only nuxlcrately i)ronunent, slender and low above, 

 widening below, the narrow sulcation beginning midway between the 

 sunnnit and ocelli with the walls coarse, whereas in chapadensis the rather 

 broad sulcation begins near the summit, and has the walls fine. Pronotum 

 rather broad, roundly arched transversely between the shoulders; the 

 anterior edge angulate, spined, hind edge wedge-shaped, reaching the tip 

 of the abdomen; median carina rather prominent and a little arcuate in 

 front, straight or gently undulate behind, the surface both rugose and 

 granulose with indications of accessory carina' on the disk: sides of 

 pronotum in advance of the humeri with glabrous patches. Hind femora 

 robust, the pinna^ regular. 



General color brownish ferrugineous varied with fuscous and piceous 

 above, on the sides piceous or fuscous, the males darker with paler face; 

 checks and lower lateral anterior edges of pronotum testaceous. Hind 

 femora mottled with testaceous; anterior and middle legs dimly annulate 

 with fuscous. Underside testaceous. Tegmina immaculate, but with the 

 lower edge a little pallid. 



Length of body, cf, 8.25 mm., 9. 11 mm.; of pronotum, cf, 7 mm., 9, 

 9.35 mm.; to tip of wings, cf . II mm., 9, 12.5 mm.; of hind femora, d^, 

 5.2 mm., 9 , 6.5 mm. 



Habitat. — One male and two female specimens collected from April 

 to November by H. H. Smith. Chapada, near Cuyaba, Matto Grosso, 

 Brazil. Carnegie Museum, Pittsburgh. 



Tettigidea costalis sp. nov. 



About the size and form of T. laferalis of middle North America, but 

 at once separable from it by the presence of a spine on the anterior margin 

 of the pronotum above, by the narrower and less projecting vertex, by 

 the deeper and coarser median longitudinal sulcus and prominent granulated 

 ridges on top of the head, by the less coarse and less prominent frontal 

 costa and the more ampliate terminal joint of the palpi. T. costalis may 

 also be known by the more prominent supplemental longitudinal carina? 

 of the pronotum, which are onh- two in number on each side, straight, 

 parallel, continuing to a point almost opposite the middle of the hind 

 femora. The tegmina of costalis are somewhat smaller and less definitely 

 marked than in lateralis and its North American allies, while the spines 

 on the hind tibiae are smaller and fewer in number. 



The general color of the only specimen at hand is dull brownish testa- 



