Bruner: Saltatorial Orthoptera. 43 



As suggested on page 71 of Vol. VIII of the Annals, the present 

 genus contains at least a dozen and a half distinct, though rather 

 closely related forms, which occur in tropical and subtropical America. 

 Some of these already have been described, but others not. The 

 principal reason for this state of affairs seems to be due chiefly to the 

 lack of the necessary material at any one time, as well as the difficulty 

 of definitely determining the identity of the species described by 

 Burmeister, Serville, and Thunberg. The present collection certainly 

 contains three forms, or possibly five. They belong to C. M. Ace. 

 No. 5058. They seem to be separable as given under Nos. 82-86 

 inclusive. 



82. Leptysma gracilis Bruner. 



Leplysma gracilis Bruner, Proc. U. S. Nat. Mus., XXX, p. 658 (1906); Ib., Ann. 

 Carnegie Mus., VIII, p. 71 (1911). 



The material collected by J. Steinbach in the Province del Sara, 

 Bolivia, contains two males of this delicate little species. They were 

 taken in October, 1913, at an elevation of 350 meters above sea-level. 

 C M. Ace. No. 5058. Two others taken by the same collector bear 

 the label "Rio Japacani, E. Bolivia, February 1917. C. M. Ace. 

 No. 5573-" 



83. Leptysma filiformis (Serville). 



Opsornala filiformis Serville, Ins. Orth., p. 503 (1839). 



Leptysma filiformis Stal, Recens. Orth., I, p. 85 (1873); Bruner, Proc. U. S. 

 Nat. Mus., XXX, p. 658 (1906); Ib., Ann. Carnegie Mus., VIII, p. 72 (191 1). 



Five males and six females seem to belong to Opsornala filiformis 

 Serville, as I have determined that species. They all come from the 

 Province del Sara, Bolivia, where they were collected by J. Steinbach 

 in Pctober, 1913, at an elevation of 350 meters above sea-level. 

 C. M. Ace. No. 5058. 



84. Leptysma sp. No. i 



Two males and possibly a female of a form which seems to be dis- 

 tinct from L. filiformis, are set aside as species No. i. They are a 

 little smaller and somewhat slenderer than the specimens referred to 

 L. filiformis. They do not have the abdomen dusky above, and have 

 the fastigium larger and longer than in the individuals assigned to 

 No. 83. They measure as follows: Length of body, cf, 33 mm., 



