EEVISION OF ELEODIINT— BLAISDELL. 89 



Number of specimens studied, 150. 



Types (Cat. No. 12-202) are in the U. S. National Museum collec- 

 tion; cotypes in my own. 



Type-locality. — Fort Grant, Arizona. 



Salient type-characters. — Integuments dull in luster. Epistoma 

 somewhat coarsely punctate, punctures not crowded nor confluent. 

 Antenna^ in the male reaching beyond, and in the female to the pro- 

 thoracic base. Thorax in both sexes widest at about the middle and 

 not more strongly arcuate before the same. P^lytra striato-punctate, 

 ol)soletely and faintly subsulcate. 



Diagnostic characters. — Anthracina differs from quadricollis in 

 its salient type-characters. For its separation from carhonaria., 

 humeralis, and cuneaticollis, see differential diagnosis under quad- 

 ricollis. 



I have seen specimens of this race labeled ca^'honaria, and it is 

 generally labeled quadricollis in collections. 



In its dull luster and long antenna? it might be confused with 

 ampla, but the shorter legs and large anterior spurs of the anterior 

 tibise in the female will separate it. 



Mr. Blanchard has compared it with the LeConte types, especially 

 vicina, and says that it differs from all and is most closely related to 

 quadricollis. 



Prosternum as in quadricollis, but less inclined to be submucronate 

 and less frequently grooved at the middle betAveen the coxse. The 

 mesosternum is frequently slightly more strongly concave. 



Otherwise as in quadricollis. 



ELEODES QUADRICOLLIS van LUSTRANS, new. 



Oblong-ovate to ovate, moderately elongate, very glabrous and 

 shining. 



Head comparatively rather small, frons moderately and quite 

 evenly convex, scarceh' to distinctly impressed laterally, frontal 

 suture usually not evident, almost coarsely, rather thickly and evenly 

 punctate, punctures usually not denser on the epistoma. Antenna'. 

 rather long, somewhat slender, outer four joints scarcely at all com- 

 pressed or dilated, third joint quite equal in length to the next two 

 taken together, the fourth just visibly longer than the fifth, the latter, 

 sixth and seventh subequal, eighth just the least shorter and subtri- 

 angular, ninth and tenth suborbicular, eleventh short ovate or oval. 



Pronotuni subquadrate, widest at or just a little in front of the 

 middle, one-fourth to one-third wider than long; disc evenly ^nd 

 moderately convex, more or less arcuately declivous at the sides and 

 apical angles, finely and sparsely punctate, sometimes a little more 



