ROLAND HAYWARD. 59 



broadly rounded at tip. Legs nearly black, with slight seiieous lustre ; all the 

 femora with two setigerous punctures along the inner margin ; basal joint of 

 middle and hind tarsi not grooved on the outer side. Length .29-.31 inch ; 7.25- 

 7.75 mm. 



Witli the exception of fallax, this is the only species having two 

 setigerous punctures along the inner margin of the middle femora, 

 in which the second and third antennal joints are carinate. From 

 tlie latter species it is at once recognizable by the absence of an 

 ocellate j)uncture at the base of scutellar stria, as well as by other 

 characters. The punctured elytral strife are of rare occurrence in 

 the present subgenus. 



Described from five males from Osoyoos, British Columbia. P^or 

 the example in my cabinet I am indebted to the generosity of Mr. 

 Chas. Liebeck. 



49. A. polita Lee. — Oval, moderately convex. iEneons or nigro-teneous, 

 sometimes distinctly bluish, shining. Head nearly as wide as the thorax at 

 apex; antennte shorter than the head and thorax, piceous, the three basal joints 

 paler, joints 2-3 distinctly carinate; palpi piceous. Prothorax subquadrate. 

 more than one-half wider than long, narrowed from about one-third in front of 

 base, impunctate or obsoletely punctured at base ; apex emarginate, sides rounded 

 in front, margin narrowly reflexed, the posterior lateral seta in the hind angle; 

 transverse impressions obsolete; median line fine, abbreviated in front; basal 

 impressions distinct, the inner longer than the outer, which is oblique; base 

 truncate; hind angles rectangular, not carinate. Elytra only very slightly 

 wider than the thorax, finely striate; striae entire, impunctate; scutellar stria 

 without ocellate puncture at base, the eighth with row of ocellate punctures not 

 widely interrupted at middle ; intervals flat or nearly so. Body beneath black, 

 impunctate; prosternum rounded at tip. Legs piceous or rufopiceous, the femora 

 darker; front and hind femora with two, the middle with four, setigerous punc- 

 tures along the inner margin ; tarsi not grooved on the outer side. Length .25- 

 .28 inch ; 6.25-7 mm. 



A well marked little species, readily distinguishable from the 

 others with the second and third antennal joints carinate by the 

 deeper basal impressions, the outer of which is oblique, as well as 

 by its smaller size. 



It occurs throughout the Middle States, being known to m<' from 

 as far east as Pittsburg, Pa., and extending northward to Lake 

 Superior and westward to Colorado. 



TEAN6. AM. KNT. SOC. XXXIV. MARCH. 1908. 



