28 STERNOXI — BUPIIESTIDAE. 



h. Elytra with an oblong spot fpointed behind and fre- 

 quently absent) of gray hairs before apex. 



Upper-side purple, dull, with coppery reflection ; under- 

 side bronze-green. Thorax transversely wrinkled, uneven, 

 with a fine, raised curved line in posterior angles ; elytra 

 closely granulate ; front of prosternum deeply emarginate ; 

 last ventral segment of abdomen rounded. L. 3| — 4 1. 

 Scarce. A. sinuatus, 01. 



JB. Claws with a broad and more or less blunt tooth at 

 base. 



ci. Last ventral segment of abdomen rounded, without 

 impression. 



Olive-green, bluish or bronze ; forehead bluish or, cop- 

 pery ; under-side with brassy reflection. Thorax much 

 broader than long, coarsely wrinkled irregularly, with a 

 small raised ridge in right angled posterior angles ; elytra 

 rather strongly wrinkled, at apex strongly rounded and 

 slightly divergent, finely but distinctly toothed. L. 2| — 

 3 J 1. Eare. A. viridis, Lin. 



b. Last ventral segment of abdomen emarginate, with an 

 oblong impression in male. 



I. Antennae sawlike (in male nearly comblike) in 

 middle ; first abdominal segment in male with two 

 small prominences in middle of apex. 



Bluish, green or bronze. Thorax broader than long, 

 coarsely wrinkled and distinctly punctured, with a ridge 

 (curved in front only and reaching nearly to middle) in 

 posterior angles ; elytra moderately closely and strongly 

 granulate, at apex truncate and very indistinctly toothed. 

 L. 2 — 2| 1. Common. A. angustulus, 111. 



II» Antennae strongly dilated in middle, fourth and 

 following joints broad triangular ; first abdominal 

 segment in male without prominences. 



Narrow, gradually narrowed behind. Olive-green ; disc 

 of thorax blackish in front. Thorax much broader than 

 long, coarsely and not very closely wrinkled, with a more or 

 less distinct, curved ridge in posterior angles ; elytra granu- 

 late, apex rounded and extremely finely toothed. L. 2 J 1. 

 Moderately common. A. laticornis, 111. 



