75 



convex above tlie ocellus ; lateral carinaj slight. Pronotum slightly con- 

 stricted in the mitldle ; lateral carinte slightly curved inward a little in 

 advance of the middle, expanding somewhat posteriorly ; posterior lol:)c 

 densely punctured on the disk and sides; the transverse impressed line 

 distinct, curved, situated a little behind the middle ; hind border obtusely 

 rounded ; the sides have each two shallow broad indentures, rendering tliem 

 a little uneven. Elytra short, not reaching the tip of the third abdominal 

 segment; wings shorter. Abdomen elongate, somewhat compressed, slightly 

 carined above. Posterior femora slender, shorter than the abdomen. An- 

 tennae slightly enlarged and flattened near the base; joints unusually distinct, 

 almost moniliform. 



Color (after long immersion in alcohol). — Almost uniform dull bi-ownish 

 or ash-yellow. Antennse rufous, dusky at the tips. Palpi, anterior and middle 

 legs, and posterior femora rufous ; spines of the posterior tibiae yellow at 

 base, tips black. 



Dimensions. — Length, 1.15 inches; elytra, 0.25 inch; posterior femora, 

 0.60 inch. 



Montana (Thomas). 



Remark. — As will be seen by the above description, this species varies 

 somewhat from the typical form of the genus in the slightly curved lateral 

 carina} of the pronotum and in the antennaj ; yet a single glance is sufficient 

 to convince any Orthopterologist that it belongs here. 



CSs. VBi'Mis, Thos. 



Syu., ChloeaUis viridis, Sciuld., Best. Jour. Nat. His., 1SG2, vol. VII, 455. 



Vertex broad, slightly expanding in front of the eyes, beyond which 

 the sides converge so as to form a right angle, rounded at the apex ; the 

 edge more or less upturned, so as to form a lunar or semicircular de- 

 pression behind it; frontal costa scarcely sulcate above the ocellus in the 

 female, sub-sulcate in the male. Pronotum with the sides compressed, 

 vertical, parallel ; the three carinas distinct, equal, parallel ; the transverse 

 impressions indistinct, the posterior much behind the middle. Elytra ovate 

 lanceolate, about half as long as the abdomen in the female, three-fourths 

 its length in the male. Sub-anal plate of the male turned' up, sowewhat 

 pointed, entire at the tip. Posterior femora in the female about as long as 

 the abdomen. 



Color. — Of the male, whole of the upper surface green; sides a dirty 



