NORTH AMERICAN COLEOPTERA. 81 



these two only have the form of clypeus described above ; the present 

 species has the tibial tooth slightly below the middle and obtuse, 

 while in cnprascens it is one-third from the apex and acute. 



Occurs in Oregon, Washington Territory, Nevada and California. 



9. C ouprasceiis Lee. — Form of femorata, subdepressed, cupreo-seneous, 

 the thorax more reddish, moderately shining; antennte more slender at tip, 

 greenish % or feneous 9 > third joint as long as the next two ; front feebly con- 

 vex, without callosities, more densely punctured and greenish % ; clypeus (41) 

 triangularly notched at middle, on each side acutely toothed, then subtruncate ; 

 thorax twice as wide as long, base and apex equal, sides in front narrowing, at 

 middle parallel, slightly sinuate, base slightly narrowed ; disc irregular, a vague 

 median depression and with slight depressions near the side ; surface coarsely 

 and moderately closely punctate, subconfluent near the sides ; elytra wider than 

 the thorax, the sides parallel, or slightly sinuous, naiTOwing at apical third, the 

 margin serrulate, the apices obtuse ; the first costa distinctly elevated, extending 

 two-thirds to base, the second and third costse feebly evident at middle ; basal 

 fovea moderately deep, discal foveas two on each side, the first irregularly quad- 

 rate near the middle between the first and third costse,, the second one-third from 

 the apex transverse, the fovese very densely and finely punctured, the surface 

 otherwise irregularly punctured, densely and coarsely punctured at sides and 

 apex, more sparsely on the disc; body beneath coarsely not densely punctate ; 

 last ventral segment serrulate ; anterior femur with a small tooth not serrulate. 

 Length .26-36 inch ; 6.5-9 mm. (Fig. 40.) 



3Iale. — Prosternum very densely punctured, finely pubescent ; anterior tibiae 

 (44) slightly arcuate, acutely toothed one-third from the apex ; middle and pos- 

 terior tibise straight ; last ventral segment (42) with a small, semi-circular emar- 

 gination ; last dorsal obsoletely punctate, apex subtruncate. 



Female. — Prosternum coarsely and closely punctate ; anterior tibise slightly 

 arcuate, simple, the middle and posterior straight; last ventral (43 j with a very 

 small emargination at apex ; last dorsal sparsely punctate at the sides, the apex 

 entire. 



With a form of clypeus similar to that of eontigua this species 

 differs in the form and position of the anterior tibial tooth of the 

 male. The sculpture of the surface is more distinctly defined and 

 the shallow fovese quite well indicated. There seems to be very little 

 variation m the numerous specimens examined. 



The unique type in the cabinet of Dr. LeConte has the clyjoeus 

 without the two median teeth as I have indicated in a previous paper 

 (Trans. Am. Ent. Soc. pi. iv, fig. 16) ; this seems, however, purely 

 accidental, as my specimens otherwise agree so closely in form, color, 

 sculpture and sexual characters. 



Occurs in Colorado and New Mexico. 



10. <'. florieola Gory. — Form oi femorata, subdepressed, dark bronze, with 

 slight cupreous tinge; antennae very little more slender toward the tip, aneous 



9 or greenish % , third joint a little longer than the next two ; front slightly 



TRANS. AMEK. ENT. SOC. (11) MARCH, 1886. 



