Bruner: Saltatorial Orthoptera. 45 



87. Leptysmina minor sp. nov. 



Similar to, but smaller and somewhat slenderer than L. pallida and 

 ■ L. rosea of Giglio-Tos, but most nearly resembling the latter in its 

 general color, if my material is correctly determined. 



Comparatively slender, the head elongate, with the occiput on 

 nearly the same plane as the pronotum; the fastigium of the vertex 

 with the sides nearly parallel, and with its apex broadly rounded, 

 the median and accessory carina prominent and with the intervening 

 sulci profound. Antennae strongly ensiform and decidedly longer 

 than the head. Vertex narrow, but little wider than the diameter 

 of the second antennal joint, heavily longitudinally carinated in the 

 middle, and lightly but acutely carinated at its sides. Pronotum 

 subcylindrical, plainly widening cephalad, the median carina fairly 

 prominent throughout, the transverse sulci plainly visible, but not 

 profound. Tegmina somewhat mutilated near their base, but sur- 

 passing the tip of the abdomen. Hind tibiae thirteen-spined ex- 

 ternally, seventeen-spined internally. 



General color above pale ferrugineo-testaceous; legs, front, and 

 under side pale grass-green. Cheeks, lower portion of the sides of 

 pronotum, and the pleura, longitudinally striped with creamy white, 

 above which is a stripe of a fusco-olivaceous tinge, which gradually 

 merges into the general dorsal hue. Antennae ferruginous, the eyes 

 castaneous, with a brassy hue or luster in certain lights. 



Length of body, 9 , 37 mm.; of head in advance of the pronotum, 

 8 mm.; of pronotum 6 mm.; of tegmina, 29 mm.; of hind femora, 

 16 mm. 



The only specimen, the type, comes from the Cayari Island in the 

 Uassa Swamp. It was taken in May, 1918, by S. M. Klages. C. M. 

 Ace. No. 6177. 



Genus Opsomala vServille. 

 Opsomala Burmeister, Handb. Ent., II, p. 6io (1838); Serville, Ins. Orth., 



Ill, p. 419 (1910). For additional synonymy see Kirby, /. c. 



This genus is separated from among the other Leptysmine locusts 

 by the plain last ventral segment of the abdomen of the males. Other- 

 wise the members are very similar to those assigned to the genus 

 Stenacris of Walker. Kirbj' lists three species definitely, and three 

 doubtfully, as belonging to the genus. In the case of interior Bruner, 

 he is mistaken, as it is definitely a Stenacris. Probably in the case 





