Till* <!UOUND BEKTLKS. 1 P>7 



GROUP B. 



The species of this group arc as a rule, much smaller than those 

 of Group A. The males are without a pubescent space at tip of 

 middle tibiae, and the third jr<int of antennae is almost always equal 

 to or shorter than the fourth. 



KEY TO INDIANA SPl'X'IKS OF UROl'P tt. 



(i. Abdoiiieu without punctures and glabrous; thorax as broad at base as 

 elytra, sides not sinuate, basal impressions very feeble, surface dense 

 ly punctured. 302. TOMENTOSI s. 



tni. Abdomen sparsely punctured and pubescent over the entire surface. 

 l>. Sides of thorax not sinuate; prosternum not margined at tip. 



c. Legs black; thorax as wide at base as elytra, its disk with coarse 



punctures very irregularly placed. 



(1. Margin of thorax not thickened; basal line angulate at humerus ; 

 purplish or violet blue above; length 8.5-9.5 mm. 



303. PURPURICOLLIS. 



ild. Margin of thorax thickened near base ; humeri of elytra rounded ; 

 black above; length 11.5-12.5 mm. 304. NIGEK. 



cc. Legs reddish-yellow; thorax more tiuely and densely punctured, 

 narrower at apex than base and with a narrow red margin. 



305. 1MPUNCTIFRONK. 



bb. Sides of thorax distinctly sinuate; prosternum margined at tip, its 



side pieces coarsely punctured. 



p. Elytral intervals finely muricate ; i. e., with numerous flue, rigid 

 points. 300. PENNSYLVANIA'S. 



<(. Elytral intervals finely and sparsely punctured, not muricate. 

 /. Head and thorax green, varying to blue, shining. 

 g. Labrum feebly emarginate ; elytra very obsoletely and sparsely 

 punctate. 307. BREVILABRIS. 



(If/. Labrum truncate. 308. TRICOLOR. 



//'. Head and thorax coppery bronze; thorax alutaceous. subopaque. 

 more finely and sparsely punctate. 309. NEMORALIS. 



302 (1032). CIII..ENII-S TOMENTOSUS Say, Trans. Amer. Phil. Soc., II. 1823. 



60; ibid. II. 483. 



Broadly oval, robust. Blackish, purplish or greenish and 

 feebly bronzed above; antennae black, two basal joints pale, 

 the third joint longer than fourth ; under surface and legs 

 black, shining. Head nearly smooth, a few wrinkles and 

 punctures above each eye. Thorax gradually broader from 

 apex to base, disk densely and coarsely punctured, with a 

 few irregular smooth spaces. Elytral stritie shallow, punc- 

 tures round, rather coarse ; intervals feebly convex, finely 

 punetulate and pubescent. Length 13.5-15 mm. (Fig. 90.) 



Fig. 90. X IV 



Throughout the State; common. March 23-Novem- (Original., 

 her 20. Often found at electric light and probably hibernates. 

 The abdomen is sometimes sparsely punctured on the sides. 



