80 ' Annals of the Carnegie Museum. 



evenly tapering apically, where they are slender; the genicular lobes 

 triangular, acuminate; tibiae and tarsi hirsute, the external margin of 

 the tibiae eight-spined instead of six-spined as in vittatus. Anterior 

 and middle legs normal. Abdomen of male a little clavate apically, 

 the last ventral segment triangular, upturned, its apex entire; supra- 

 anal plate large, subquadrate, the lateral margins near the base ele- 

 vated, sinuose, the disc at middle profoundly elevated longitudinally 

 leaving broad lateral depressions; the marginal apophyses of the 

 preceding segment forming slender adjacent fingers one-third the 

 length of the plate. Cerci large, heavy at base, forked, elongate, and 

 curved, the inner branch heavier and directed upwards, inwards, and a 

 little to the front, their apices almost touching; the outer branch 

 slenderer and curved backwards, upwards, and only slightly inwards; 

 valves of the ovipositor rather long and strong, only moderately 

 hooked; mesosternal lobes separated by a space a little wider than the 

 width of the lobes themselves. Prosternal spine slender, acuminate, 

 emanating from a robust quadrate elevation of the surface of the 

 sternum. 



Head with the front, middle, anterior, and lower margins of the 

 cheeks, occiput at sides and middle, most of the disc of the fastigium, 

 two basal joints of the antenna;, the median carina, and sides of the 

 disc of the pronotum, middle, and sides of the dorsum of the abdominal 

 segments and lines on the pleura, bright yellow; remainder of head, 

 disc, and sides of the pronotum, dorsum of the abdomen, together 

 with the sides of the meso- and metathorax, and basal abdominal 

 segments, black. Tegmina black, with a median and dorsal vitta of 

 yellow. Legs and lower side of body greenish olive; the genicular of 

 the hind femora black, preceded by a flavous annulus. Antennae dull 

 ferruginous in the male, testaceous in the female. 



Length of body, cf , i8 mm., 9 , 21.5 mm.; of pronotum, cf , 4 mm., 

 9 , 4.15 mm.; of tegmina, cf and 9 , 2 mm.; of hind femora, d^ and 9 , 

 5 mm. 



Habitat: One male and one female, from the Province del Sara, 

 Bolivia, were found at an elevation of 350 meters above sea- 

 level. They were taken in October, 1913, by J. Steinbach. C. M. 

 Ace. No. 5059. A second male is also at hand. It was taken by the 

 same collector at Quatro-Ojos, Department of Santa Cruz, Bolivia, 

 and is made the male type because of its better condition. Two 

 additional males and a female bear the locality label "Buena Vista, 



