Coleojjterological Notices, VI. 603 



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

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

 sex is there any trace of costnliform lines on the elytra. 



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

 the dr}' regions of the great interior basin west of the Rocky 

 Mountains ; the three known to me 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 behiud the middle 2. atra 



Legs pale flavo-testaceous throughout 3. flaTipes 



In general appearance these species are remarkably homoge- 

 neous among themselves. 



1. Eu. speciilifer n. sp. — Oblong, stoiit and strongly convex, dull, 

 the elytra shining ; under surface polished; body deep black throughout, the 

 legs black with the tibiae and tarsi gradually paler; antennje blackish, i^ale 

 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-puuctate, smooth toward apex ; 

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

 epistoma short and wide, with a fine pale coriaceous margin; labrum short 

 and very broad, transversely rounded, rather dark in color; ej^es 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 club, the 

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

 zoidal, the sides strongly convergent from base to ajjex and feebly, almost 

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

 disk densely and coarsely l)ut shallowly sculptured, the large umbilicate punc- 

 tures connected by anastomosing raised lines, forming still larger polygonal 

 meshes, the sculpture l)ut slightly stronger toward the sides. Elytra nearly 

 three-fourths longer than wide, distinctly wider than the prothorax, the sides 

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

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

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

 punctulate, finely and sparsely pubescent, the legs rather long and .slender. 

 Length 4.25-4.4 mm.; width 1. 7.5-1. H5 mm. 



Utah (southwestern). Mr. C. J. Weidt. 



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

 longer than the fourth and very broadh' and feebly 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 



