124 THE CANADIAN ENTOMOLOGIST. 



Pezotettix gracilis, n. s. 



Frontal costa sulcate below the ocellus in $ ; slightly depressed at 

 the ocellus in female. Elytra small. Median carina of pronotum slight, 

 cut by the last transverse incision of pronotum behind the middle, also 

 by the central transverse incision, nearly straight. Lateral carinae dis- 

 tinct, approaching near the centre. Posterior margin of pronotum obtuse 

 in $ , sulcate in $ . Elytra short and narrow. Posterior femora as long 

 as abdomen. Male cerci short, rounded, and slightly spatulate, curved 

 inward ; lower ends somewhat curved upward and flattened. Female 

 cerci short, thick and pointed. 



Color — Varies from a bright green to an olive brown. Face green ; 

 cheeks whitish j a broad black stripe from the eye to last transverse 

 incision of pronotum, sometimes to extremity of pronotum. Below this 

 the pronotum is whitish. Disk of pronotum brown. Occiput brownish. 

 Antennae olive green, tips black. Posterior femora pea green, sometimes 

 olive green, with tip black. Posterior tibiae green ; base and spines 

 black. Venter white. Dorsum from green to light brown. Male's last 

 segment of abdomen margined posteriorly with black. Sternum greenish 

 white. 



Length of £, .75 inch.; elytra .13 inch ; posterior femora .45 inch. 

 $ .62 inch.; elytra .10 inch.; posterior femora .40 inch. 



Habitat — Omaha, Nebraska ; August to October. 



Pezotettix occidentalism n. s. 



Large, stout. Elytra in female half as long as abdomen ; in male 

 about two-fifths as long. Male antennae as long as posterior femora. 



Vertex not prominent, carinate ; foveola wide, slightly elongate. 

 Frontal costa somewhat sulcate in male ; plane in female. Eyes large, 

 inflated in male ; ordinary in female. Pronotum with sides parallel ; 

 margins acute in male, rounded in female. Posterior transverse incision 

 behind the middle ; deep in male, ordinary in female. Elytra about 

 two-fifths the length of abdomen, wedge shape. Four anterior femora 

 inflated in male, much curved. Posterior femora passing abdomen one- 

 fifth of their length. Female cerci short and pointed ; male cerci large, 

 flat, strong, slightly notched anteriorly, curving inward at extremity, where 

 they are spatulate. Genitial plate shape of letter U, large and wide. 

 Entire insect sparsely covered by short hair. 



Color—Male dark piceous, variegated with white. Face cinereous ; 

 cheeks whitish, occiput piceous with a white stripe from eye along lateral 



