March, 1917] NiCOLAY : AnTHOPILAX OF NoRTH AMERICA. 39 



2. Elytra metallic green or bronzed 3 



Elytra testaceous, irregularly maculate with piceous spots and adorned with 



irregular tufts of white pubescence attenuatus Hald. 



3. Legs in great part piceous or black 4 



Legs in great part reddish or yellowish, head and prothorax metallic green 



or bronzed malachiticus Hald. 



4. Prothorax black, slightly brassy, moderately finely and discretely punctured, 



no ante-basal transverse ridge viridis Lee. 



Prothorax bronzed black, deeply and confluently punctured, scabrous, ante- 

 basal transverse ridge more or less distinctly marked. .. .hoffmanni Beut. 



5. Elytra as well as rest of body wholly black -. 6 



Elytra bicolored or wholly pale 7 



6. Elytra moderately densely punctured, grossly towards base and finer toward 



apex; third antennal joint longer than fourth. . . .(^ and 5 tenebrosus Lee. 



Elytra coarsely punctate or scabrous in basal half and shining, abruptly 



smoother and opaque at apical half; third antennal joint of equal length 



to fourth 5 mirificus Lee. 



7. Legs wholly black 8 



Legs and antennae piceo-testaceous ; elytra luteo-testaceous with feebly 



marked black, common sutural and narrow, submarginal vittae. 



(?) J' subvittatus Casey. 



8. Elytra dull velvety red with scutellar area and subapical spot or area black. 



^ mirificus Bland. 



Elytra yellow with three deep black vittae, a common sutural and one on 



each side, which extends from humerus to apex and unites with the 



sutural ^ nigrolincatus Van Dyke. 



A. attenuatus (Haldeman). 



Stenura attenuata Hald., Trans. Am. Philos. Soc. Phil., 1847, p. 59. 



Head large, feebly channeled, thorax a little broader, channeled, disk 

 longitudinally elevated on each side and with an acute lateral tubercle, labial 

 palpi with last joint elongate, triangular, black, punctate, densely grayish 

 pubescent. Elytra mamorate with testaceous, unequally pubescent apex straightly 

 truncate. Male much more slender than female, antennae entirely black, 

 lateral outline of elytra concave. Female antennae annulate, almost entirely 

 brownish red except apical joints piceous. Length 13-17 mm. 



Eagle Harbor, Mich. (Le Conte), Marquette, Mich., June 28, 

 common in wash up (Sherman), Douglas Hill, Cumberland Co., Me., 

 May-June (Nicolay), Catskill Mts. (Pearsall), Top Whiteface Mt., 

 N. -Y., July 8 (Davis & Shoemaker), Franconia, N. H. (Slosson), 

 New Brunswick, Duluth, Minn. (Leng), Virginia. 



This species is the most common and generally distributed of the 

 genus. It has been taken abundantly by Le Conte and Sherman in 

 wash up on shore of Lake Superior. Quite local, but not rare where 



