REVISION OF ELEODIINI BLAISDELL. 99 



about three or four times longer than the posterior. In this it ditfers 

 from all of the other species of the subg-enus, except rileyi The 

 integuments are more or less opaque, and in the typical form from 

 AYashington the elytra are densely muricately punctate and more or 

 less flattened on the dorsum. 



Specimens from Lassen County, California, have the elytra dis- 

 cretely granulate ; each granule under low power of magnification is 

 polished and shining, under high power minutely ]:)ointed. These 

 constitute the heterotypical western form; in the Nevada specimens 

 the granules are smaller, less shining, but discrete. 



In the Colorado examples the granules are much larger and sparser, 

 and characterizes the incipient race here designated as forma 

 tuberGulo-Tnuricata. 



The Idaho specimens are feebly shining and more convex and 

 resemble the species described as schwarzii. The form of the anterior 

 tibial spurs will separate the two. These specimens and those from 

 Colorado have the sides of the pronotum more strongly declivous, so 

 that the marginal head can not be seen from above when viewed 

 vertically. The relationships of these forms are really dubious, but 

 the material at hand does not warrant their separation as distinct 

 species. 



I have seen specimens of the gi^nnvlato-inirncata form labeled 

 f/rantilata; the latter species belongs to another subgenus and is 

 different altogether. 



Rileyi is smaller, more sjDarsely punctate, more convex in form, and 

 undoubtedly more closely related to Jiumeralis than to any other 

 species of the subgenus. 



The mentum is of moderate size, rather parabolic in outline in the 

 typical form, and more triangulo-trapezoidal in the other forms; 

 the surface is coarsely but not very densely punctate, moderately 

 convex and scarcely foveate laterally ; seta' very short. 



The pfosternmn is usuall}^ quite semicircularly convex antero- 

 posteriorly between the coxse; sometimes feebly submucronate or 

 rarely vertically subtruncate behind. 



The mesosternum is more or less feebly oblique and concave. 



The intercoxal process of the abdomen is slightly transverse in both 

 sexes, and about one-third (male) or a sixth (female) of its width 

 wider than the metasternal salient. 



The metasternum laterally between the coxae is as long as the width 

 of a metatibia at apex. 



The post-coxal portion of the first abdominal segment is equal in 

 length to that of the process, and in the female to the length of the 

 third segment. 



