132 



body ; posterior femora, 0.75 to 0.9 inch long, 0.20 to 0.22 inch wide ; pos- 

 terior tibifE, 0.62 to 0.75 inch. $ Length, 1.2 to 1.3 inches. 



Texas, Colorado, New Mexico, Wyoming, Dakota (Thomas); Kansas, 

 Nebraska (Dodge). 



I have always included this under (E. corallijKs, Hald., from which it 

 does not appear to be distinct. I am inclined to beheve that this and Q?. 

 pardalina, Sauss., are varieties of the same species ; the " seven foveola of 

 the vertex" are sometimes dimly outlined in specimens of OE. haldemanii, 

 which I have from Wyoming and Colorado. 



ffi. parafloxa, Thos, Geol. Surv. Terr., 1871, 457. 



This species is very closely allied to OS. coralUpes, Hald , from which it 

 differs in but few characters, but these are rather important. 



Vertex rather more deflexed and prominent in front. A reddish tinge 

 prevails on the lighter parts of the whole insect. The lateral carinse of the 

 pronotum are bordered internally with a broad, whitish stripe ; the whitish 

 stripes along the dorsal angles of the elytra are quite distinct, and the dorsal 

 portion appears to be without spots. The wings are of an orange-red (some- 

 times cinnabar-red) at the base ; the dark band crosses about two-thirds the 

 distance from the base to the extremity ; a dark stripe runs up the anterior 

 border; apex transparent, with dark nerves. The. inside of the posterior 

 femora and the posterior tibiae a bright-yellow ; the exterior face of the 

 femora crossed by three irregular, quite oblique, dark bands. Antennae 

 shghtly enlarged and somewhat flattened near the apex. 



Dimensions. — Same as CE. coralUpes. 



Northern Utah, Southeast Idxiho (Thomas). 



Remark. — There are no permanent characters by which to distinguish 

 alcoholic, specimens of CE. coraUipes, lialdemannii, paradoxa, and rugosa from 

 each other; I have, therefore, in another place, (Hayden's Geol. Surv. Terr., 

 1872, p. 720), given my reasons for believing they are but Varieties of one 

 species. I have there also included (E. discoidea, but it is probable that this 

 is distinct. Yet I have thought it best to describe each licre as a separate 

 species, leaving this question to be determined by future investigations. 



<E. rii^osa, Scudd., Bost. Jour. Nat. Hist, VII, 469. 



Head and tliorax of unusual depth in tlie female; head rather broader 

 tluui the middle of the pronotum. Vertex l)road, transverse, witli two rather 



