268 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



Init slight carina; which meet at the front at an angle greater or less 

 than a right angle. The lateral foveola; are sub-qiiadrate, about twice 

 as long as broad, very distinct and very apparent from above. The 

 frontal costa is about half as wide at the vertex as at the clypeus, 

 slightly sulcate with low broad carinje along the sides. Seen from the 

 side the face is moderately arcuate and moderately oblique. The an- 

 tennae are filiform, a little (female) or considerably (male) longer than 

 the head and pronotum. The median carina of the pronotum is quite 

 distinct and cut once l)ehind the middle by the principal sulcus. The 

 lateral carin?e are very strongly sinuate and the posterior margin of 

 the metazone is roundly and very obtusely angulate. The lateral 

 lobes of the ])ronotum are higher than long with the anterior and the 

 posterior margins nearly straight and vertical. The mesosternal lobes 

 are separated by a space several times as wide as long in both sexes. 

 The metasternal lobes are separated by a space a little longer than 

 wide in male and female. The tegmina and wings are well develoijed, 

 not quite equaling or somewhat longer than the abdomen. The former 

 have the scapular area transparent and filled with a single series of ob- 

 lique cross-veins. The discoidal and ulnar areas have each a false 

 veiri with a single row of cells on either side. The posterior femora 

 have three usually well marked sub- triangular or irregular brown spots 

 on the upper face. The posterior tibiae are red or yellowish with the 

 spurs on the inner side much elongated and very unequal. The ovi- 

 positor is very slightly exerted, only the extreme tip being visible. 



This genus is North American and so far as known is represented 

 by two species which are apparently confined to the northern and 

 western states. All the species seem to be partial to sandy and rather 

 barren soil. 



Key to eremnus, n. gen. 



A.' Tegmina very obscurely spotted or quite plain . i . — Deorum, Scud. 



A.2 Tegmina usually distinctly and thickly spotted, never plain 



. 2 . — Sciidderi, Bruner. 



I. Eremnus deorum, Scud. Figs. 29a, 29b. 



Chrysochraoti deorum, Scud., 1876. Bui. II, U. S. Geol. Surv. in 

 Col., etc., 263. 



Chrysochraon deorum, Bruner, 1883. 3rd Rept. U.S. Ent. Com., 55. 



Hab. Garden of the Gods, Colo. (Scudder). The National Mu- 

 seum contains several specimens, one of them immature, which were 



