Bruner: South American Acrn \. I I:; 



carina of the hind tibiae, instead of eight, in the more prominent 

 and less depressed fastigium of the vertex, the blunter and shorter 

 prosternal spine, and in having much larger and broader tegmina. 



The type of this genus is the following described species which is 

 represented by a single male from Bartica, Demarara, British Guiana. 

 It was taken during late March or early April by Mr. R. J. Crew, 

 and sent to the author, in whose collection it now is. 



200. Eusitalces vittatus sp. nov. 



Size rather small; antenna long and coarse; body very dark brown 

 or black, striped with yellow; the femora stout and chiefly ferru- 

 ginous, becoming olivaceous apically, the knees infuscated; the tibiae 

 and tarsi greenish gray; face and venter yellowish. 



Head moderately large, a little wider than the front edge of the 

 pronotum, the occiput somewhat ascending above the plane of the 

 pronotum; eyes large and prominent, subglobular, with a brassy 

 tinge, separated above by a space scarcely more than one-half as great 

 as the width of the frontal costa between the base of antennae; fas- 

 tigium of the vertex triangular, about as broad as long, the center 

 1 hi >\ ided with a fairly broad longitudinal median sulcus, which narrows 

 posteriorly and continues to the front edge of the occiput; frontal 

 costa prominent above the ocellus, a little narrowed immediately 

 below, then again expanding and continuous to the clypeus, broadly 

 and deeply sulcate, with coarse walls; viewed laterally the face is 

 nearly straight; facial carina? prominent, nearly parallel. Antennae 

 coarse, about as long as the hind femora, twenty-jointed. Pronotum 

 without lateral carinae, somewhat constricted laterally at the middle 

 transverse sulcus, all three sulci profound, the median carina plain 

 in front of anterior sulcus and prominent on the hind lobe; the latter 

 considerably expanding posteriorly, front lobe sparsely punctate 

 and somewhat transversely rugose, hind lobe closely and finely 

 punctate; anterior edge of disk roundly emarginate, hind border 

 angulately so, and with the edge slightly elevated in the emargina- 

 tion. Tegmina lobate, lateral, broadly oval, reaching nearly to the 

 hind edge of the metathorax. Tympanum or auditory- apparatus 

 inconspicuous. Hind femora large, robust, extending beyond the 

 apex of the abdomen nearly one-half of their length, the upper carina 

 with faint serrations or tubercles, at the apex ending in a minute 

 spine; terminal joint of hind tarsi equal to, or a little more than, the 



