1922] Ball and Hartzell: Review of Orgerini 143 



species; it therefore appears to be confined to the State of 

 Nevada and a narrow fringe of the adjoining states and only on 

 the higher levels where sage brush grows. Nymphs and adults 

 were found during July at the lower levels, adults were nearly 

 all out by July 20 but in the mountains nymphs were still pres- 

 ent up to early August, while adults we;-e taken up until the 

 last of the month. 



Deserta bipunctata Ball. 

 Orgamara bipunctata Ball. Proc. Bio. Soc. Wash., Vol. XXII, p. 199, Dec, 1909. 



Resembliag ohscnra but with a longer, slimmer, less inclined 

 cephalic process about twice the length of the eye and lighter in 

 color. Length, female, 6 mm. ; male 5 mm. 



Front with the central raised tablet distinctly narrowing before 

 the eyes, then parallel margined to the clypeus. The part of the front 

 above the center of the eyes almost double that below. Elytra shorter 

 than in obesa, slightly abbreviated, truncate. Color — -Variable, but 

 usually a dull fuscous, finely irrorate with fuscous brown. 



Examples are at hand from St. George, Utah, and Ravenna, 

 California, probably on A. tridentata. 



Deserta obesa Ball. 

 Orgamara obesa Ball. Proc. Bio. Soc. Wash., Vol. XXII, p. 199, Dec, 1909. 



Resembling bipunctata but smaller with a shorter, blunter 

 cephalic process upturned at a sharper angle, slightly less than 

 45°. Length, female, 6 mm. ; male, 5 mm. 



Cephalic process slightly more than once the length of the eye. 

 Elytra short, the inner angles broadly rounding. Front parallel mar- 

 gined, part above eyes but little larger than that below. 



Color — Pale straw, with a dirty orange cast. Nervures of the elytra 

 with the cells smoky, the nervures of a pale straw color. 



This species has been taken at American Fork and Parowan, 

 Utah, from sage brush in July and August. 



Orgerius Stal. 



Resembling Deserta, but with a broader, shorter, distinctly 

 triangular cephalic process. 



Cephalic process short, broad at the base, tapering to an angular or 

 slightly conical point, not truncate. The lateral carinas of the front 

 rounding into the median carina at the apex of the cephalic process. 

 Oblique carina curving upwards from the eye, pustulate below; median 

 carina extending to the apex. Eye separated from the pronotum by a 

 diamond-shaped callosity. The anterior margin of the lateral tablets 



