Coleopterological Notices, VI. 603 



liptical area on each elytron near the apex which is polished and 

 iinpunctate,and of which there is no trace in the other ; in neither 

 sex is there an}' trace of costuliform lines on the eh'tra. 



The species appear to be local and rare, and are distributed over 

 the dry regions of the great interior basin west of the Rocky 

 Mountains ; the three known to rue may be known as follows : — 



Legs black, more or less paler distally. 



Prothorax widest at or very near the base; the sides convergent and feebly 



arcuate throughout 1. speciilifer 



Prothorax more arcuate at the sides toward base, and widest at a short 



distance behind the middle 2. atra 



Legs pale flavo-testaceous throughout 3. flavipes 



In general appearance these species are remarkably homoge- 

 neous among themselves. 



a 



1. Eu. speculifer u. sp. — Oblong, stout and strongly convex, dull, 

 the elj'tra shining; under surface polished; body deep black throughout, the 

 legs black with the tibiae and tarsi gradually paler; antennae blackish, pale 

 toward base; pubescence very sparse, decumbent, moderate in length, dark in 

 color and entirely inconspicuous. Head small, about one-half as wide as the 

 prothorax, the sculpture shallow but scabro-punctate, smooth toward apex; 

 occiput feebly impressed along the middle, the frontal impressions obsolete; 

 epistoma short and Mide, with a tine pale coriaceous margin; labrum short 

 and very broad, transversely rounded, rather dark in color; eyes moderately 

 large; antennae a little longer than the prothorax, the two basal joints slightly 

 stout, the next two narrow, the fifth wider, six to ten still wider, rather com- 

 pact, strongly transverse, forming a broad pubescent and serrate clul), the 

 eleventh moderate in length. Prothorax two-thirds wider than long, trape- 

 zoidal, the sides strongly convergent from base to apex and feeblj'^, almost 

 evenly arcuate, the apex arcuate ; apical angles rounded, the basal obtuse; 

 disk densely and coarsely but shallowly sculptured, the large umbilicate punc- 

 tures connected by anastomosing raised lines, forming still larger polygonal 

 meshes, the sculpture but slightly stronger toward the sides. Ehjira nearly 

 three-fourths longer than wide, distinctly -^^■ider than the prothorax, the sides 

 parallel and nearly straight; apex obtuse, the sutural angles Ijroadly rounded; 

 disk sparsely punctate, the punctures gradually coarse toward base, fine pos- 

 teriorly, becoming denser and rugulose very near the apex. Abdomen feebly 

 punctiilate, finely and sparsely puliescent, the legs rather long and slender. 

 Length 4. '25-4. 4 mm.; width l.To-l.'^o mm. 



Utah fsouthwestern). Mr. C. J. Weidt. 



The type is a male, and in that sex the fifth ventral is much 

 longer than the fourth and very broadly and feebh' sinuate to- 

 ward the middle of the apex. In the female the form throughout 

 is similar, but each elytron has an oval, subapical, polished and 



