Sv 



Clypeus with two setigerous punctures on each side. 



Intervals of elytra hnpunctate, elytra in part at least and legs testaceous. 



Thorax piteous, testaceous at the sides 24 discoi&eUS, L>ej. 



Thorax entirely piceous 25- baltlmorensis, Say. 



Intervals of elytra alternately punctulate 



Punctulate near the apex only 2S. pitvchrous, Lee. 



Punctulate their entire length 27. porOSUS, Motsch. 



C. Terminal spur of anterior tibia slender. 



a. Elytra with distinct dorsal puncture; smooth, striate; first joint of middle tarsus cj' 



glabrous beneath or with a very small pubescent space; posterior tarsi variable, 

 more or less metallic species, Amara— like. (Haplotentrus.) 

 Posterior tarsi slender, the first joint fully equal to the next two. Metasternum at 

 sides and intercoxal process smooth. 

 Thorax scaicely wider at base than apex. First joint of middle tarsus <^ glabrous 



beneath. Species oblong 28. laetllS, Dej. 



Thorax broader at base, as wide as the elytra. First joint of middle tarsus $ 



pubescent at tip. Species oval 29. COSnuS. Say. 



Posterior tarsi distinctly flattened, the first joint shorter than the next two. Metas- 

 ternum at sides and intercoxal process punctate. 

 Sides of thorax behind nearly parallel, hind angles rectangular. Middle tarsus 

 of male with first joint very slightly pubescent at tip. . . 30. amaroides, Lee. 



b. Elytra without dorsal puncture, subopaque, finely pubescent, densly punctulate, striate, 



but without distinct dorsal puncture: first joint of middle tarsus ^ pubescent 

 over half its surface. Black species. 

 Thorax as wide at base as apex, hind angles rounded, intervals of elytra alternately 

 with coarser punctures, irregularly placed Femora black, tibiae and tarsi 

 pale 31. sericeUS, Harr. 



BIBLIOGRAPHY. 



1. strenuus, Horn, Trans. Am. Ent. Soc. 1868, p. 130. Cal. 



2. dilatatus, Dej. Spjcies IV, p. 241. Cal. =/iirsiiiiis, Men. Bull. Ac. Petrop; II, 



1844, p. 61. 



3. obtus^s, Lee. Ann. Lye. V, p. 185. Cal. 



4. pilosus, n. sp. Horn. Proc. Am. Phil. Soc. 1880. p. 165. Cal. 



5. immanis, n. sp. " " " " " " " " Cal. 



6. britnneus, Dej. Species IV, p. 239. Cal. 



7. piceus, Men. Bull, Acad. Petrop, II, 1844. p. 61. Cz\.==brunneus,% Mann. Bull. 



Mosc. 1843. II, p. 2l2.=vi//osits, Mots. Bull. Mosc. 1845. IV, p. T > 4^=:rrjgu/ar!s, 

 Mots. loc. cit. p. 2i45-=piira//c>/i/s, Lee. Ann. Lye. V, p. 184. 



8. harpaloidcs, Ferte. Ann. Ent. Soc. Fr. 1841. p. 203. Gulf States. 



9. dulcicollis, Ferte. Rev. Zool. 1841.P. \\.=ellipticus, Lee. Ann. Lye. IV, p. 284. 



Gulf States and Mo. 



10. opaculus, Lee. New Species, 1863. p. 16. =elongatns, Chaud. Rev. Mag. Zool. 

 1868. p. 13. Tex. 



