BRUNER : Sm ill AMERICAN ACRIDOIDEA. I '_'.". 



follow-. The 5. mains was partially characterized in the second paper 

 referred to above, [n size it is practically the same as infuscatus, 

 from which it differs primarily in the entire absence of tegmina and 

 also in the less infuscated coloration. 



Habitat. The three specimens al hand, one male and two females 

 were taken a1 Santarem, Brazil, by II. II. Smith. 



170. Sitalces infuscatus Bruner. 

 Sitalces infuscatus Bri ner, MS. Biol. Cent.-Amer., Orthopt., II, p. 291 (1908). 



Resembling 5. ovatipennis Bruner from British Guiana, but much 

 darker colored, and having more disparity in size between the sexes. 



Body moderately hirsute, the pronotum, and in the male the other 

 thoracic and first abdominal segments, rather strongly punctulate, 

 the remaining portions of the bod) smooth. Head a little wider 

 than the anterior end of the pronotum; vertex narrow-, fastigium 

 depressed, and with the vertex longitudinally sulcate, bordered in 

 from by a well marked carina. Frontal costa plane and prominent 

 above the ocellus, becoming weaker and narrower below. Face 

 viewed in profile rather oblique. Antenna? filiform, a little ( 9 ) or 

 decidedly (cf ) longer than the combined length of the head and pro- 

 notum. Transverse sulci of latter coarse and deeply impressed, con- 

 tinuous across the disk. Tegmina minute, squamiform. scarcely 

 reaching the middle of the metam mm. Auditory apparatus minute 

 almost obsolete. Hind femora normal, plainly extending beyond the 

 apex of the abdomen in both sexes. Apical portion of male abdomen 

 not enlarged, the last ventral segment short and blunt; supra-anal 

 plate triangular, its lateral edges thickened, crossed at middle by a 

 transverse carina, beyond this the plate is gently bent downwards; 

 cerci long and slender, the apical third curved gently inwards. Pro- 

 sternal spine minute on a rather robust base. 



General color above dark brown to black, and. in some specimens, 

 exhibiting traces of two occipital, two lateral pronotal, and a medio- 

 dorsal, pale, bands. Cheek- below eyes, lower margins of sides of 

 pronotum, and middle of pleura, marked by bright yellow lines. Face, 

 excepl antennal grooves and the dusky band across the upper ex 

 tremity of the frontal ccsta between them, the pectus, and much of 

 lower portion of abdomen, flavous; legs olivaceous, the hind tibiae 

 greenish glaucous. Genicular lunules and base of tibia? ferruginous. 



Length of body, cf, 11 mm., 9, 15.5 mm.; of pronotum, cf, 2.1 



