IOWA ACADEMY OF SCIENCES. 185 



under side bright yellow: rostrum black, reaching almost to the posterior 

 coxce; antennte black at base. Pronotum banded on the anterior margin 

 by a slender black line, and with five straighter and more slender lines 

 which stop just short of the lateral margins, these lines feebly impressed 

 and obsoletely, minutely scabrous, surface not wrinkled, almost smooth, 

 moderately convex, deeply emarginated behind, the lateral margin nar- 

 rowly produced as far as the outer line of the eyes; the humeral margin 

 recurved, and with a small black dot before it. Scutellum pubescent, yel- 

 low, transversely wrinkled, with a slender black line at base, and an inter- 

 rupted one behind the middle. Hemelytra with short, remote, golden 

 • pubescence, coarsely punctate at base, more obsoletely so posteriorly; the 

 inner and posterior margins, the suture between the corium and clavus, an 

 oblique short streak on the disc, and a spot on the middle of the costa fus- 

 cous: posterior margin of the corium with a sinuous brown band, the mem- 

 brane and posterior one-third of the corium, and spot at base of costa pale 

 brown; the bulla very prominent, black; under side yellow; the mesoste- 

 thium, discs of the plural pieces, and middle line of genital segment pitch 

 black Legs, yellow, the tibia? having a band below the knee, another on 

 the middle, and a third at tip, and the spines of tibia? and tarsi, including 

 the nails, dark piceous. 



Lengih to the tip of hemelytra, four and one-half mm., width of prono- 

 tum, two mm. 



After a careful study of representatives from every state 

 from which it has been reported so far, the following descrip- 

 tion, embracing ocly characters of specific value was prepared. 



Size variable; color from yellow to black; front much inflated; two cir- 

 cular yellow depressions on vertex near eyes; pronotum strongly, broadly 

 wrinkled. 



Front rising abruptly from face at sides, meeting vertex in same plane 

 above, outline a regular curve. Vertex very slightly transversely 

 depressed; a distinct, circular, yellow depression midway between eye and 

 ocellus on either side. Pronotum coarsely pubescent, strongly, transversely, 

 wrinkled, about eight on the median line. Hemelytra coarsely pubescent; 

 veins on clavus strongly raised; apical cells transversely compressed, third 

 cell triangular, not reaching beyond angle of posterior marginal vein. 

 Legs stout; spurs and spines strong; femur and tibia with dark lateral 

 lines coalescing with two dark spots on outside of tibia. 



Sub. sp. I. lineata. Pronotum yellow, with five black bands. 



Var. a. Clavus with veins and margin yellow inclosing dark areas. 

 b. Clavus entirely fuscous. 



Sub. sp. II. binotata. Pronotum entirely black. 



Habitat: Utah (Uhl), Cal. Col. and Ariz. 



This species is so widely variable that with only the extreme 

 forms there would be no hesitancy in pronouncing them sepa- 

 rate species, but with a large amount of material a series can 

 be found which clearly establishes their relationship. Uhler's 

 description is an absolutely perfect one for Sub. sp. lineata var. 



