72 Annals of the Carnegie Museum. 



104. Leptysma dorsalis (Burmeister). 

 Mesops dorsalis Burmeister, Handb. Ent., II, p. 610 (1838). 



Habitat. — Chapada, Brazil, during the month of May (H. H. 

 Smith). 



The present writer eonsiders dorsalis distinct from the next species. 



105. Leptysma filiformis (Serville). 



Opsomala filiformis Serville, Ins. Orthopt., p. 593 (1839). 

 Leptysma filiformis Stal, Recens. Orthopt., I, p. 85 (1873). 



Habitat. — Specimens, which have been referred here, come from both 

 Benevides and Chapada, Brazil. The}' were taken during July and 

 August by H. H. Smith. 



106. Leptysma obscura (Thunberg). 



Truxalis obscura Thunberg, Nova Acta Upsal, IX, pp. 77, 79 (1827). 

 Leptysma obscura Stal, Recens. Orthopt., I, p. 86 (1873). 



Habitat. — Chapada, Brazil, during the months of May to October 

 inclusive, an extensive series of both sexes (H. H. Smith). 



107. Leptysma intermedia sp. nov. 



Belonging in the first division of the genus, and related to L.. 

 argentina and L. gracilis, but differing from both of them in its larger 

 size and somewhat more robust form. A species with well-marked 

 longitudinal lateral pallid stripes bordered above by piceous. Tegmina 

 and wings comparatively shorter than in the related species. 



Head horizontal, the occiput slightly shorter and somewhat nar- 

 rower than the pronotum; eyes elongate lentiform, plainly longer 

 than the anterior edge of the cheeks below them, separated above 

 by a linear space; fastigium about equal to one of the eyes in length, 

 slightly depressed anteriorly, gently acuminate, the lateral margins 

 gently arcuate and faintly raised, median longitudinal sulcus not pro- 

 found, becoming more pronounced anteriorly. Front viewed in profile 

 nearly straight and horizontal, the frontal costa of moderate width 

 and suhate throughout, the lateral walls somewhat approaching 

 and becoming less pronounced just below the ocellus. Antennae 

 robust, ensiform, about reaching the base of hind femora. Prono- 

 tum cylindrical, punctulate throughout, sparsely and faintly on the 

 anterior, and quite closely and more strongly, on the posterior lobe: 

 median carina inconspicuous, but plainly visible throughout, the 



