230 LECONTE— SYNOPSIS OF PTEROSTICHUS. 



impression is single and linear, and sometimes very short, the margin is narrow and 

 not reflexed ; the striae of the elytra are fine and punctured, usually only as far as the 

 middle, the scuteilar stria punctiform ; the two marginal striae very closely approxi- 

 mated. This division corresponds to Cyclotrachelus Chaud. 



9. E. uni color, opacus, thoraee non transverso, lateribus postice subsinuatis, angulis posticis subrectis, 



impressionibus basalibus longiusculis, elytris tenuiter striato-punctatis, dorso deplanatis. Long. wS. 

 Feronia unicolor Say. Trans. Am. Phil. Soc. 2, 40. 



A single male from the upper part of Georgia ; Louis LeConte. 



10. E. rotundatus, subnitidus, thoraee transverso, angulis posticis obtusis, striola basali abbreviata, 

 elytris tenuiter striato-punctulatis. Long. -75. 



One female : Athens, Georgia. Prof. John LeConte. This species is nearly related 

 to the last, but is wider in its form. The posterior angles of the thorax are obtuse 

 and scarcely prominent, the basal impressions are deep, but short; the striae of the 

 elytra are very fine, the punctures are distinct and close set, becoming obsolete at the 

 middle, and the disc is not at all flattened. 



11. E. Brevoorti, nitidus, thoraee subtransverso, angulis posticis obtusis, striola basali abbreviata, 

 elytris dorso sub-deplanatis, striis fere ad apicem punctatis. Long. -63. 



Feronia Brevoorti Lee. An. Lye. 4, 352. 



Alabama, Haldeman : Georgia, near the mountains. The striae are deeper than in 

 the preceding, the punctures are large and extend nearly to the apex ; the elytra of 

 the male are more flattened than those of the female. 



12. E. f a b e r , subopacus, thoraee transverso, angulis posticis obtusissimis, striola basali brevi, elytris lati- 



oribus tenuiter striatis, striis usque ad medium punctatis. Long. "53. 

 HoIops/aherGevm. Ins. Nov. 23. 

 Feronia tenehricosa Dej. Sp. Gen. 3, 301. 

 Cyclotrachelus tenehricosus Chaud. Bull. Mosc. 1838. 

 Feronia spoliata Newman. Ent. Mag. 5, 386. 

 Ste7-opus faherJjec. An. Lye. 353. 



Southern and western States, abundant. 



d. 



We have here small convex shining species, resembling in form Pasimachus 

 depressus : the antennae are thick and somewhat moniliform ; the thorax is rounded, 

 very much narrowed behind, with the posterior angles sometimes distinct, and some- 

 times rounded ; the anterior transverse line is sometimes entire, sometimes interrupted : 

 the basal impressions are single and short ; the margin is extremely narrow, not re- 

 flexed, sometimes entirely obsolete posteriorly. The elytra are sometimes without 

 striae ; the seventh stria is always obliterated ; the two marginal striae are not approxi- 

 mated ; and the outer one is sometimes obsolete. In the Annals of the Lyceum, I 

 considered these species as belonging to Broscus, not having at that time seen a male 

 of any of the species. 



