Bruner: Saltatorial Orthoptera. 53 



mm.; of pronotum 6 mm.; of tegmina, 27 mm.; of hind femora, 

 15.5 mm. 



Habitat: The type, a female, comes from Uassa Island, Uassa 

 Swamp, where it was collected in June, 1918, by S. M. Klages. C. M. 

 Ace. No. 6167. There is also a second female at hand, bearing the 

 label "Oucatopi Island, S. M. Klages, C. M. Ace. 6178." It was 

 likewise taken in June, and agrees in all respects with the type. 



Genus Tucayaca gen. nov. 



Related to Stenacris, but differing from that genus in having the 

 body of the males noticeably more robust, the face more strongly 

 receding or oblique, the antennae decidedly ensiform, and the hind 

 legs comparatively heavier and longer. When compared with the 

 various species of Stenacris, the type of the present genus, T. aquatica, 

 is seen to have the last ventral segment of the abdomen of the male 

 more elongate, tapering, and simple. In the table or key for separat- 

 ing the tropical American genera of Lcptysmce and allies (Annals, 

 VIII, pp. 69-71) Tucayaca runs to cc. under A. In order to insert it 

 we would then add the following: • 



d. Fastigium about as long as wide, its sides convergent from the base, and but 

 little bowed, the lateral edges little, if at all, carinated. Occiput some- 

 what arched, the head shorter than the pronotum. Antennae with the 

 basal joints but little dilated. Apex of the male abdomen with the last 

 ventral segment not greatly elongate, often quite elaborated with tubercles, 



spines, or other appendages Stenacris Walker. 



dd. Fastigium of the vertex a little longer than wide, the sides on its basal third 

 or half parallel, beyond this point bowed, the lateral edges strongly carinated. 

 Occiput straight, the head as long as the pronotum. Antennae with the 

 basal joints plainly dilated, giving to these members a subensiform appear- 

 ance. Apex of abdomen of male with the last ventral segment rather 

 elongate, not complicated with appendages, but gradually tapering, and 

 directed backward and upward Tucayaca gen. nov. 



97. Tucayaca aquatica sp. nov. 



General color wood-brown above, testaceous below. Sides of the 

 head, pronotum, and pleura broadly banded with piceous, bordered 

 below by a dirty white line. Eyes fairly prominent, nearly twice as 

 long as wide. Vertex somewhat depressed, not quite as wide as the 

 diameter of joint two of the antennae, the latter about one-third longer 

 than the head and the pronotum combined; the fastigium with its 





