AMERICAN COLEOPTERA. 75 



Bihhatus Say, 9 .—Sides of thorax feebly arcuate in front, parallel 

 posteriorly. A. tener Lee. is the % , consentaneMs Lee. and plana fus 

 Lee. are 9 and not separable. 



Melanophthabnm Mels., 9 .—Sides of thorax more decidedly arcu- 

 ate and slightly sinuate posteriorly. These specimens recall somewhat 

 the form of Cori/mhites rupestris. 



^ Cavlfrons Mels., is described from a male less mature, of paler color 

 with pubescence removed and therefore apparently more shining. 



Occurs from Canada to Georgia. 



Synonymy and Bibliography. 



A. Mrtus Cand. Mem. Belg. xvii, 1865, p. 54. 



A. carbonatus Lee. Proc. Acad. 1860, p. 320; Cand. Mon. iv, p. 214. pi, 3, fig. 2. 



co?'aciWMS Cond. loc. cit. p. 214. 

 A. morio Lee. Trans. Am. Philos. Soc. x, p. 450; Cand. loc. eit. p. 213. 



verna Cand. loc. cit. p. 212. 

 A. dilaticollis Mots. Bull. Mosc. 1859, iv, p. 368. 

 A. tumescens Lee. Proc. Acad. 1861, p. 348. 

 A. oregonus Lee. loc. cit. p. 348. 



A. soccifer Lee. U. S. Surveys 1876, (Lt. Wheeler), App. H, 10, p. 516. 

 A. indistinctus Lee. Trans. Am. Philos. Soc. x, p. 451. 



A. decoloratus Say, [Elater), Trans. Am. PhiL Soc. vi, p. 180; Lee. loc. cit. 

 p. 451; Cand. Mon. iv, p. 212. 

 htmiTpodus 9 Say, Ann. Lye. i,p.254; Lee. loc. cit. p. 449; Cand. loc. cit 



p. 210. 

 corporosus 9 Germ. {Diacanthus) , Zeitschr. iv, p. 72. 

 (Eveus 9 Mels. {Athous), Proc. Acad, ii, p. 156; Lee. loc. cit. p. 450; Cand. 



loc. cit. 215. 

 ceneolus % Mels. loc. cit. 

 A. memnonius Hbst. {Elater), Kaefer x, p. 29, pi. 160, fig. 10; Lee. loc. eit. 

 p. 450; Cand. loc. cit. p. 211, pi. 3, fig. 1. 

 baridius Say, Trans. Am. Phil. Soc. vi, p. 176. 

 Tkomasi Germ. (Hemicrepidius) , Zeitschr. i, 1839, p. 213. 

 rufkornis Kby. Fauna Bor. Am. p. 146. 

 brevicollis Cand. Mon. iv, p. 212. 

 A. bilobatus Say, (Elater), Ir&ua. Am. Phil. Soc. vi, p. 164; Lee, loc. cit. p 45'>- 

 Cand. loc. cit. p. 222. ' 



melanophthalmus 9 Mels. (^^Aows), Proc. Acad, ii, p. 154; Lee. loc. cit. p. 451 • 

 Cand. loc. cit. p. 221. ' 



cavifrons % Mels. loc. cit. p. 154; Lee. loc. cit. p. 453; Cand. loc. cit. p. 223. 

 tener Lee. Ice. cit. p. 452. 

 consentaneus 9 Lee. loc. cit. p. 452. 

 planatus 9 Lee. loc. cit. p. 453. 



