Till': i.ioAP Bi;n'rhi.:s. 11*09 



c. l'"orm elongate, subcylijidrical. subcylindkica. 



ce. Form regularly oval. irregulabis. 



cc. Rows of elytral pimctures regular. 



/. Form elongate-oval, more than twice as long as wide ; piceous, 

 surface bronzed ; apical portion of antennse and all the femora 

 piceous. 2284. protexsa. 



//. Form oval, not twice as long as wide. 

 (J. Punctures of head distinct. 

 h. Punctures of the front and clypeus dense and rugulose; sur- 

 face subopaque. 223.5. denticuiata. 

 Uh. Punctures of the front and clypeus coarse, well separated; 

 surface shining. 223G. ceibbifrons. 

 00- Punctures of head small, indistinct. 



/. Punctures of elytral striaj well impressed to apex ; thorax 

 with a distinct basal row of punctures. 223,7. minuta. 

 //. Punctures of elytral striis feebly Impressed, nearly obsolete 

 at apex ; basal row of thoracic punctures very feeble. 



2238. PiNQUis. 

 66. Head absolutely without punctures. 



j. Thorax with an entire basal marginal line, which is not defined 

 by punctures; color brassy bronze; scutellar stria regular. 



2239. OPULENTA. 



jj. Thorax with a basal marginal row of punctures. 



/,-. Thorax shining, minutely alutaceous. 2240. parcepunctata. 



7i'7i-. Thorax subopaque, distinctly alutaceous. 2241. pcucakia. 



aa. Sides of thorax obliquely truncate at the front angles and with an 

 angulation in front of middle; thorax without basal marginal line. 



2242. coNFiNis. 



C. cribata Lee, In-fissy-bronzed, antenna?, til)ia' and tarsi reddish- 

 yellow, length 2 mm., is known from ^lassachusetts and Oregon. C. 

 subcylindrica Lee, piceous, feebly bronzed, length 2-2.5 mm.; and 

 C. irrcgula.ris Lee., piceous, distinctly bronzed, length 2 mm., are 

 known to occur in ilichigan. 



2234 (7042). Ch^etocnesia pbotessa Lee, Proc. Amer. Phil. Soc., XVII, 

 1878, 417. 

 Form given in key. Piceous, distinctly brassy-bronzed ; tibife, tarsi and 

 basal half of antennse reddish-yellow. Head coarsely, not closely punctate. 

 Thorax one-third wider at base than long, sides regularly curved, feebly 

 narrowing to aijex ; disk minutely alutaceous, rather finely and sparsely 

 punctate. Elytra slightly wider at base than thorax, with regular rows of 

 rather coarse, close-set punctures ; intervals fiat, wider than strife, without 

 punctures. length 2.5-2.S nun. 



Lake County; rare. October 6. Ranges from Maryland and 

 ^lichigan westward to Colorado. 



