232 LECONTE— SYNOPSIS OF PTEROSTICHUS. 



e. 

 These are species very similar in appearance to those in (b.) but usually of a more 

 slender form, and with the thorax more rounded on the sides, and more constricted 

 behind ; the posterior angles are always prominent, the basal impressions are usually 

 large and deep, bistriate, and with a small ridge between the outer stria and the 

 margin. The anterior transverse line is either entire or interrupted ; the margin 

 narrow, not reflexed ; the striae of the elytra usually deep, the seventh rarely indis- 

 tinct or obliterated ; the outer marginal stria distinct, not nearer to the inner one than 

 to the margin. They are mostly western species, inhabiting the plains of Missouri 

 Territory. 



18. E. vinctus, thoraee non transverso, basi non rugoso, stria exteriore basali brevissima, linea trans- 

 versa antsriore obliterate, elytris profunle striato-punctalatis, interstitiis convexis. Long. -43. 



Nakutshi valley, Habersham Co., Georgia. Shining black ; thorax not wider than 

 long, not at all narrowed at the apex, which is scarcely emarginate, very much nar- 

 rowed behind, where it is only half as wide as at the apex, moderately rounded on the 

 sides, sinuate posteriorly, angles acute, prominent ; interior basal impression long, ex- 

 terior extremely short, almost obsolete; carina obsolete; anterior transverse line and 

 impression wanting. 



19. E. abdominalis, thoraee non transverso, lateribus late oblique rotundatis, postice breviter sinuatis, 

 basi non rugoso, linea transversa anteriore obliterata, elytris profunde striatis, pedibus rufo-piceis, ventre 

 piceo. Long. 4. 



Feronia (Molops) abdominalis Lee. An. Lye. 4, 347. 



Found near Long's Peak. The stria? of the elytra are scarcely punctured. 



' 20. E. 1 i x a , thoraee subtransverso, lateribus late rotundatis, postice breviter sinuatis, basi subrugoso, 

 linea transversa anteriore margini approxiinata, elytris striato-punctatis, interstitiis subplanis, pedibus 

 rufo-piceis. Long. -4, 

 Feronia {Molops) lixa, Lee. An. Lye. 4, 346. 



Found with the preceding, from which it differs by the greater rounding of the 

 sides of the thorax, by the strise of the elytra being less deep, and more evidently 

 punctured. 



21. E. incisus, thoraee subtransverso, lateribus late rotundatis, postice brevissime sinuatis, basi 

 subrugoso, linea transversa anteriore margini approximata, elytris profunde striatis, striis obsolete 

 punctulatis pedibus rufo-piceis. Lorig. -4. 



Feronia (Molops) incisa Lee. An. Lye. 4, 345. 



Also from Missouri Territory. The real difference between this and the preceding 

 species consists in the smaller size of the posterior angles of the thorax. In one 

 specimen the anterior transverse line is interrupted in the middle. 



22. E. o v i p e n n i s , longior, thoraee subtransverso, lateribus rotundatis postice breviter sinuatis, basi 



subrugoso, linea transversa anteriore margini approximata, elytris elongatis striis vix punctulatis, 

 interstitiis subplanis. Long. -53. 

 Feronia {Molops) ovipennis Lee. An. Lyc# 4, 345. 



