Horn.] J-^^^ LNov. 5^ 



puncture on each side. The punctures of the elytra! intervals are rather 

 irregularly placed and are usually closer on the inner side of the interval 

 than the outer. Length .36 inch ; 9 mm. 



This is the most common species of the Pacific coast, occurring from 

 Alaska to the Peninsula of California and the islands adjacent, it extends 

 inland to Idaho and Utah. 



A — b, rusticus Group. 



Species oblong or somewhat oval, glabrous, surface usually opaque, 

 rarely shining [dulcicollis) or metallic (Jiarpaloides). Terminal spur of 

 anterior tibiae (^ 9 trifid. Posterior tarsi slender, as long as the tibite, the 

 first joint as long as the next two, the fourth joint emarginate. Elytra 

 striate, intervals impunctate, a distinct dorsal puncture, tip distinctly 

 sinuate. 



3fu-le. Anterior tarsi broadly dilated, the first four joints densely pu- 

 bescent beneath, middle tarsi dilated joints 2—3—4 densely pubescent, the 

 first Avith a small pubescent space at tip (except in harpaloides where 

 there is no pubescense). 



Female. Anterior and middle tarsi not dilated (except in harpaloides- 

 and opaculus where the first joint is broader and stouter). 



The clypeus on each side has but one setigerous puncture, except in car- 

 honarius where there are two. 



The dilatation of the first joint of the anterior tarsus of the female is not 

 a character of great value. It is well marked in the two above mentioned, 

 but less in the second than in the first. In dulcicollis also a slight thicken- 

 ing may be observed. 



The species of this group are distinguished in the following manner : 



Clypeus with one setigerous puncture on each side, prosternum at middle 

 smooth, not pubescent. 

 Surface shining. 

 Surface with metallic lustre, aeneous, legs and antennse pale. 



8. harpaloides Ferte. 



Surface black, shining, legs black 9. dulcicollis Ferte. 



Surface opaque, very distinctly alutaceous. 

 Form elongate parallel, thorax not narrowed in front, widest near the- 



middle 10. opaculus Lee. 



Form more or less oval, thorax narrowed from base to apex, widest at 



base 11- rusticus Say. 



Clypeus with two setigerous punctures on each side, prosternum at middle 

 punctured and pubescent. 

 Surf\ice opaque, form elongate, thorax nearly as wide at apex as at 

 base 12. carbonarius Say. 



8. A. harpaloides Ferte. An oblong species, shining, with greenish or 

 bluish metallic surface lustre. The clypeus has but one setigerous- 

 puncture on each side. Thorax as wide at base as apex, the sides feebly 



