l''^8 FAMILY 11.' -(' \1;ABTD/TE. 



Coiite table. ''I'heY wci-c in ;i]l i)i-()l)al)ility revised by Dr. Horn 

 without pnblisliing- the resiib. " 



The following table is based lai'i>e|y upon that of LeConte. and 

 was drawu uji for the speeiineus as named by Mr. Liebeck and 

 afterward re\newed by Mr. Fall. (Jouiparison was also inadt^ witli 

 those in the TjeConte collection at rainbridi>(\ 



KEY TO INDIANA SPKCIKS OF BRAfHYNLS. 



)i. Lai\sei- siiecies. 10 to 15 mm. 



h. Elytra .gradually but (listinetly widened behind, costate or snbeostate. 

 e P^lytral humeri distinct but rounded; thorax widest .just in front 

 of middle. 

 (1. Thorax not longer than wide, the sides in front nnn-h rounded. 

 e. Abdomen fuscous; antennae with the fourth and following 

 joints darker. 278. alternans. 



ee. Abdomen and antennte pale. 279. tormentarius. 



dd. Thorax distinctly longer than wide, its sides less rounded. 



280. DEYROLLEI. 



cc. Humeri of elytra narrow, indistinct; thorax widest one-fourth 



from apex. 281. americanxjs. 



hh. Elytra but slightly widened behind, the sides parallel or nearly so. 



the humeri distinct. 



f. Thorax very wide in front, suddenly narrowed behind the middle; 



elytra blackish-blue. 282. ballistarius. 



ff. Tliorax nmch narrower in front, more gradually narrowed behind: 



elytra paler blue. 283. fumans. 



'/(/. Medium sized or small si)ecies, not over 9.5 mm. 



!i. Thorax wider than long, strongly constricted behind the middle. 

 //. Form slender; elytra smooth, feebly widened behind, their sides 

 almost parallel. 284. gracilis. 



hli. Form broader, the elytra gradually but distinctly widened from 

 base to apex. 

 /. Elyti-a together subquadrate. distinctly costate. 



285. quaoripennis. 

 a. Pjlytra but faintly or obsoletely costate. 



./. Hind angles of thorax i)rominent ; antenme and abdomen in 

 part or wholly dark. 286. cordicollis. 



././. tlind angles of thorax very slightly prominent; antennte and 

 abdomen wholly reddish-yellow. 287. cyanipennis. 



Of/. Thorax as long or longer than wide, the base much less strongly con- 

 stricted. 

 A-. Joints 3 and 4 of antenna' almost bl-ick. joinis 5 to apex more or 

 less fuscous; abdomen wholly dark. 288. pulchellfs. 



/.-A'. Joints 3 and 4 of antennae not darker than those which follow. 

 /. Hind angles of thorax not at all prominent ; humeri indistinct, 

 m. Abdomen with the sides dark; thorax broadly rounded on the 

 sides in front; lai'ger, 7-9 mm. 289. perplexus. 



mm. Abdomen wholly pale ; thorax more strongly rounded on the 

 sides in front; smaller, not over 6 mm. 290. minutus. 



