Bruner : South A.mkrican Tki ricid.k. 105 



b. ProiiDtiini and wiiiKs abbrcviati'd, little if any lonnor than ihf ahdoincn, the 



wings decidedly shorter than the pronotum abhrcvialus sp. nov. 



bb. Pronotum long and slender, the wings fully tleveloped and extending beyond 



the apex of the pronotum. 



c. Lower posterior angles of the pronotum strongly turned outwards, somewhat 



rounded. Middle femora with the lower carina straight, the apical 



portion of the thigh provided with a strong, long tooth; upper carina of 



hind tibiae strongly lobate. All the tibiae decidedly annulated with 



fuscous tibialis sp. nov. 



cc. Lower posterior angles of the pronotum less strongly turned outwardly, 

 decidedly rounded. Median femora with the lower carina somewhat 

 undulate, the tooth on the apical portion of the thigh less prominent, 

 the upper carina of niitldlc tibia' not lobate. Tibize less conspicuously 



annulate variegalus sp. nov. 



AA. Body less strongly carinated and rugose; the disk of the pronotum a little 



rounded; median carina for the most part rather faint, only slightly com- 



presso-elevated anteriorly and not at all or but gently undulate posteriorly; 



lateral carinae less prominent. 



b. Larger ( 9 , 13 mm. to tip of wings). Lower carina of middle femora straight. 



General color fuscous infiiscatus sp. nov. 



bb. Smaller ( 9 , 9. 5 mm. to tip of wings). Lower carina of middle femora un- 

 dulate. General color ferruginous minor sp. nov. 



The members of the present genus also resemble somewhat closely 

 those of the genus Otumba, but dift'er from them in the much more strongly 

 carinated and rugulose pronotum and the clypeate median femora. 



Sclerotettix abbreviatus sp. nov. 



The present species is characterized by having the surface of the pro- 

 notum coarsely rugulose at its sides and on the disk, and by being depressed 

 above be. ween the tegmina. The median carina of the pronotum is 

 compresso-elevated anteriorly and undulate and interrupted back of the 

 transverse sulcus. The apex of the pronotum only reaches to the tips 

 of the hind femora at most, while the wings are still more abbreviated. 

 The lower carina of the middle femora is very prominent and strongly 

 lobed, while the hind femora are robust and rugoso-nodulose. 



General color very dark brownish ferruginous, more or less varied above 

 and on the legs with paler mottlings and maculations, below brownish 

 testaceous, the tibiae and tarsi plainly fasciate with fuscous. In some 

 specimens the disk of the pronotum shows traces of the typical triangular 

 velvety black markings so frequently seen on members of this family 

 of locusts. 



Length of body, d^, 7 mm., 9, -8 mm.; of pronotum, d", 7 nmi., 9, 8.5 

 mm.; of hind femora, cT, 4.35 mm., 9 , 5.2 mm. 



