1852.] 47 



fertissime punctate distincte canaliculato, elytris parallelis, rugose punctatis, 

 subtiliter striatis. Long. '2. One female, Pennsylvania. Differs from the last 

 by its coarser und denser punctuation, and by the thorax not being regularly 

 narrowed in front. 



3. E. cornutus Esch. Zool. Atlas. 1,10. tab. 4, fig. 6; Man. Bull. Mosc. 

 1843, 238. Sitkha : unknown to me. 



Emathion Lap. 



Sphcerocephalus Esch. 



This genus has a very great resemblance, to the last, and can only be distin- 

 guished by the slight inferior prolongation of the fourth tarsal joint, and by the 

 prosternal prominence being acute. In the last genus this prolongation is blunt 

 and rounded. The males of this genus have the 6 last joints of the antennae a 

 little enlarged. 



1. E. atropos. Eucncmis atropos Say. Trans. Am. Phil. So c. 6,187. 

 Louisiana, Schaum. 



2. E. penetrans, elongatum cuneiforme, atrum confertissime punctatum 

 subtilissime fulvo-pubescens, fronte linea tenuissima laevi, thorace latitudine 

 sesqui longiore, lateribus parallelis antice rotundatis, pone medium late canali- 

 culato, utrinque ante medium obsolete foveato ; elytris tenuiter striatis, antennis 

 pedibusque rufo-piceis. Long. -22 '3. 



Georgia : in Say's description of the preceding species, probably by a* clerical* 

 error, the terminal, instead of the penultimate joint of the tarsi is said to be di- 

 lated. 



Anelastes Kirby. 



1. A. Druryi Kirby. Trans. Lin. Soc. 12, tab. 21, fig. 2 : Guerin Ann. 

 Ent. Soc. Fr. 2d ser. 1, 17. Siloms hrunneus Latr. An. Ent. 3, 129. Georgia. 



Guerin refers this genus to the genuine Elateridae : Eriehson in Agassiz' No- 

 menclator Zoologicus places it in Cebrionidae. The form of the clypeus, how- 

 ever, forces it into the present group. The prosternum is scarcely prominent 

 behind ; the plates of the posterior coxae are suddenly dilated, by the addition 

 of a quadrangular piece. 



2. A. Latreillei, obscure rufo-piceus, subnitidus, thorace convexo, sub- 

 tiliter parce granulato, postice canaliculato, lateribus valde rotundatis, angulis 

 posticis divergentibus, elytris profunde striatis, interstitiis subtiliter ragose 

 punctatis. Long. '4 "5. Sacramento, California, Rathvon. 



The thorax is much more rounded on the sides than in A. Druryi, and the 

 whole surface is much less scabrous ; the head is more distinctly granulated than 

 the thorax, and the frontal line is faint as in the other species. 



Hylochares Latr : Guer. 



l.H. nigricornis. Melasis nigricornis Say Journ. Ac. Nat. Sc. 5, 165. 

 Ohio, Schaum. 



Fornax Lap. 

 Dirhagus Esch 



1. F. bicolor. Hylochariis? hicolor Mels. Proc. Ac. Nat. Sc. 2, 149. New 

 York: Wilcox. 



2. F. badius. Dirhagus Ziaii5 Mels. ibid. 2, 149. Pennsylvania, S. F. 

 Baird. 



3. F. cylindricollis. Eucncmis cylindricollis Say, Trans. Am. Phil. 

 Soc. 6, 188. Illinois, Georgia, and Pennsylvania. 



4. F. s t r ia t u s, elongatus, ater pubescens, confertim punctatus, thorace lati- 

 tudine longiore, lateribus leviter rotundatis, pone medium late canaliculato, 

 elytris rugose-punctatis, striis sat profundis, interstitiis modice convexis, anten- 

 nis tibiis tarsisque rufo-piceis, Long. 22. One specimen, Georgia. Very simi- 

 lar to the preceding, but smaller, and with deep distinct elytral striae. 



