NORTH AMERICAN COLEOPTEKA. 227 



While this species corresponds very well with the insufficient de- 

 scription by Mannerheini, there may he some doubt as to whether 

 the name should be applied to this or to evida. For a number of 

 years it has had the unpublished name cupreolm in the LeConte 

 cabinet and may have been distributed under that name. 



This species and marevagans are a little stouter than the following 

 species, the antenme thicker toward the tip, although not greatly so, 

 and the fourth antennal joint very plainly longer than the third, but 

 the entire series is so difficult to separate by description that the 

 sexual characters of the male, together with the elytral sculpture 

 must be especially depended upon. In all the species none approach 

 it in color in any of their variations, except evida, which is easily 

 known by the foveate ante-basal line. 



Occurs in California and Montana, also in Alaska (Mannerheim). 



15. H. tiueta Lee— Elongate oval, feebly convex, nearly of the form of 

 carinata, deep blue to nearly black, moderately shining. Anteunje slender, a 

 little longer than half the body, piceous, bluish at base, third and fourth joints 

 equal in length. Head distinctly transversely impressed above the tuber.'.les, 

 these small, distinctly separated, carina not prominent. Thorax more than half 

 wider than long, distinctly narrower in front, sides arcuate, more broadly ante- 

 riorly, margin very narrow, distinctly thickened at the front angles, disc convex, 

 ante basal line moderately deeply impressed, ending rather abruptly near the 

 sides, surface sparsely, finely punctate, a little more coarsely at base, a few coarse 

 punctures near the front angles. Elytra a little wider at base than the tlKuax. 

 humeri rounded, umbone feeble, a slight impres.sion within it, surface moderately, 

 coarsely and closely punctate, smoother near the apex. Pody beneath and legs 

 colored as above; abdomen sparsely, coarsely punctate. Length .16 — .18 inch.; 

 4—4.5 mm. 



The last ventral of the male is slightly sinuate each side, the mid- 

 dle lobe moderately prominent, with a concavity of triangular form. 



Among the species of slender Luperoid form this one is sufficiently 

 well marked by the relatively coarse punctuation of the elytra. 



Occurs in California, Oregon, Nevada and Montana. 



16. H. piiiictipeniiis Lee— Elongate oval, of rather slender form, feebly 

 convex, bright greenish, moderately shining. Antennse slender, a little longer 

 than half the body, piceous, greenish at base, fourth joint scarcely longer than 

 the third. Head smooth, a group of coarse punctures near each eye, tubercles 

 feeble, carina moderately prominent, but obtuse. Thorax one-half wider than 

 long, narrowed in front, sides regularly arcuate, margin narrow, slightly thick- 

 ened in front, disc convex, ante-basal impression very feebly indicated or almost 

 entirely obsolete, surface very finely alutaceous, very minutely, sparsely puuctu- 

 late, punctures a little larger near the sides. Elytra scarcely wider at base than 

 the thorax, humeri rounded, umbone scarcely distinct, surface alutaceous, mi- 

 nutely sparsely punctate, smoother near apex. Body beneath colored as above; 

 abdomen distinctly punctate. Length .14 — .18 inch. ; 3.5 — 4.5 mm. 



