98 Annals of the Carnegie Museum. 



136. Adelotettix brunneus sp. no v. 



Somewhat similar to both A. collaris and A. obscurus, but differing 

 from both of them in its smaller size and more profusely veined 

 tegmina. 



Head very little, if any, wider than the front edge of the pronotum 

 The eyes large and prominent, about one-fourth longer than the 

 anterior edge of the cheeks, separated above by a space equal to the 

 diameter of the basal antennal joint; fastigium a very little depressed 

 anteriorly, a trifle longer than wide; occiput and vertex smooth; fron- 

 tal costa about as described for the other species; face, anterior 

 and lower edges of cheeks, pronotum, and pleura profusely, and some- 

 what finely, punctulate. Tegmina quite profusely veined, of moderate 

 width, and exceeding the length of the abdomen by-about as much as 

 their width, the apex broadly rounded. Hind femora robust, of 

 moderate length, the genicular lobes angulate, the angle slightly less 

 than a right angle. Hind tibiae slenderer than in the other described 

 species, eight-spined internally, seven-spined externally, the apical 

 one wanting. Prosternal spine short, robust, slightly transverse, the 

 apex broadly rounded; mesosternal lobes slightly wider than the 

 interspace between them. 



General color testacec-brunneous, the hind femora a little paler. 

 Tegmina brown with testaceous veins. Lunules of hind femora and 

 base of tibia> piceous; tibiae and tarsi of hind legs vinous red. An- 

 tenna' black with two basal joints brunneo-testaceous and the apical 

 three orange. 



Length of body, 9 , 38.5 mm., of pronotum, 7 mm., of tegmina, 32 

 mm., of hind femora, 16 mm. 



Habitat. — The single specimen at hand, the type, comes from Para, 

 Brazil, where it was taken by H. H. Smith in May. It is in the 



Carnegie Museum. 



Genus Adimantus Stal. 



Adimantus Stal, Bihang. Svensk. Akad. Handl., V, no. 4, p. 38 (1878). 



A very characteristic tropical American locustid genus, to which at 



least three recognized forms belong. 



137. Adimantus vitticeps (Blanchard). 

 Acridium vitticeps Blanchard, in D'Orbign, Voy. Amer. Merid. Ins., p. 216, pi. 27, 



fig. 4 (1846). 

 Adimantus vitticeps Bruner, Proc. U. S. Nat. Mus., XXX, p. 666 (1906). 



Habitat. — Corumba, Brazil (H. H. Smith). 



