GEOLOGICAL SURVEY OF THE TERRITORIES. 721 



larger size than tbe ruf/osa, tbe wiugs yellow at base, and the inside of 

 the posterior femora generally a bright coral-red, the pronotum some- 

 what more wrinkled and rngose than the Nebraska specimen, (which has, 

 as I shonld have stated, the posterior femora orange-yellow inside and 

 the tibia', yellowish, tinged with red;) the spots on the elytra are more 

 broken up. In Utah, we meet with another variety which resembles 

 very closely the corallipes except that the wings are pale-red at base and 

 the inside of the posterior femora yellow. 



In consideration of all these facts, we are certainly ju.stifi.ed in think- 

 ing it highly probable that these are but varieties of the same species, 

 the differences being attributable to the differences of climate and food, 

 those in the moister climate, where the vegetation is ranker and where 

 they are less exposed to the sun, being darker and "plumper" than those 

 found on the more arid plains of the West. 



CE. Mowa, Thos. 



Female. — The central foveola of the vertex is not exactly quadrilateral , 

 but somewhat hexagonal. Parts of the mouth, pectus, and venter yel- 

 lowish-white. Face, dirty brown ; lateral carinas distinct, reaching the 

 corners of the face; cheeks, dusky or dark brown; from the upper 

 margin of each eye a pale stripe runs back to the pronotum; the pos- 

 terior part of the occiput fades, backward, from duskj- to yellow ; pro- 

 notum dusk}' with paler spots. The angles (or longitudinal corners 

 when folded) of the elytra are marked with a narrow yellow stripe ; 

 the upper (posterior) narrow field dusky ; rest as described ia re- 

 port of 1871. Posterior tibiie bright blue, with an indistinct, pale 

 ring below the knee ; apex black. Tarsi pale yellow. Wings pellucid 

 with a few fuscous dots near the apex ; nerves and nervules of the apical 

 portion dusky ; rest pale or white. 



JDimensions. — Length, .87 inch; elytra, .86 inch; posterior femora, .52 

 inch; posterior tibia3, .40 inch; pronotum, .20 inch. 



Taken at Lincoln, Nebraska, August 3. 



(E. tenebrosa, Scudd. 



Var. With disk of the pronotum pale, cinereous, Tomonotus pseudo- 

 nietanus^i Thos. 



Anteuuse fuscous, and considerably flattened toward the extremity. 

 The pale portions of the mouth and face are slightly tinged with pale 

 rufous. The disk or basal portion of the wings a very bright brick-red. 

 Posterior femora with three distinct white bauds; posterior tibia) black, 

 with a white ring below the knee. 



Taken at Lincoln, Nebraska, August 3. 



(E. verruculata^ Kirb. ' 



In the southwestern part of Minnesota, (August 19,) I noticed quite a 

 number of individuals of this species sticking to the weeds along the road- 

 side. Supposing them to be alive, I stopped to collect some, when, to 

 my surprise, I found they were all dead; again and again I repeated the 

 experiment, but with the same result. All these appeared to be females; 

 their colors as bright as though living. 



Stenohothrus macuUpennis ? Scudd. 



Female. — Face dull, rusty yellow; cheeks and sides of the head brown, 

 darkest immediately" back of the upper part of the eye, where it forms 

 an ill-defined stripe which runs back to the pronotum. Occiput and 

 disk of the pronotum pale brown.* 



The black or dark-brown stripe running back from the eye coutinueis 



40 G s 



