Bruner : South American Acridoidea. L19 



area, the lateral lobes of the latter rounded, the superior carina nearly 

 smooth, terminating .it the apex in a minute blunl tooth. Mind 

 tibiae six-spined externally. Anterior and middle femora nol at .ill 

 inflated. Abdomen elongate, nol tapering, the apical portion gently 

 clavate; lasl ventral segment short, smooth, roundly triangular, the 

 apex entire; supra-anal plate scutiform, the disk rather complicated 

 by ridges and depressions, and the margin more or less sinuose, the 

 apex a little produced and depressed; cerci moderately heavy, long 

 and evenly tapering, directed backwards and a little upwards, plainly 

 passing the supra-anal plate. Mesosternal interspace slightly trans- 

 verse, broadening caudad, plainly wider than the lobes themselves, 

 the inner margins of which art- rounded. Prosternal spine small. 

 located on the heavy anterior margin of the prosternum, which 

 gradually widens and increases in height as it approaches the center. 



Pale brunneo-testaceous with a faint olive tinge on occiput, pro- 

 notum and legs, strongly and rather profusely maculate with fuscous 

 and dull black. Fastigium, front below the ocellus, sides of head 

 below the eyes and lower half of lateral lobes of the pronotum dirty 

 yellowish white; scrobes of antennae, frontal costa above, eyes, head 

 immediately back of them, upper half of sides of pronotum, and pleura 

 together with tegmina, largely fuscous, becoming black and inter- 

 rupted on the latter so as to form a series of three or four oval or 

 quadrate maculations. Mouth-parts, except palpi, and underside 

 piceous; anterior and middle legs conspicuously annulated with 

 fuscous, hind femora flecked with fuscous, which tends to the forma- 

 tion of bands, the genicular lunules faintly embrowned, but not fuscous; 

 hind tibiae more or less infuscated, becoming darker as the apex is 

 approached. Antenna? infuscated, with four or five pale annulations. 



Length of body, cf, 17-20 mm., of pronotum, 4-4.6 mm., of tegmina, 

 10 mm., of hind femora, 1 1 mm., of antennae, 12-13 mm. 



Habitat. — Two males collected during July at Para, Brazil, by 

 II. II. Smith. Type in the collection of the Carnegie Museum. 



This insect does not exactly tit either Anablysis Gerstaecker or 

 Demonax Stal, both of which it approaches in some of its characters. 

 It seems, however, to come closest to the former. So far as the am- 

 pliate terminal joints of the palpi are concerned it approaches Omma- 

 tolampis and its allies, of which there are undoubtedly several 1111 

 described genera belonging to tropical America. 



