DESCRIPTIONS OF NEW SPECIES. 151 



those of Dryala Muls. (Col. France, Barbipalpes, 58,) but the 

 prothorax is not bifoveate at base, and the eyes are less emargi- 

 nate. The genus Dryala has not been adopted, because the type 

 of it, Hallomenus fuscus, on examination by Schaum, Redten- 

 bacher, and DuVal, was found to have the anterior COXJB separated 

 by the prosternum, as in the other species of Hallomenus. The 

 anterior coxae, in the two species described below, are prominent, 

 conical, and contiguous, their cavities have a very minute ex- 

 ternal fissure, and the lateral sutures of the prosternum are 

 obliterated, in which respect it agrees with the genera of the tribe 

 Scraptiini. The characters are therefore anomalous, and I am 

 not certain that I have assigned to the genus the best position. 



In the Classification of North American Coleoptera I Incor- 

 rectly referred these two species to Trotomma, a European genus 

 allied to Scraptia, and like it having the head strongly constricted 

 behind the eyes forming a small neck, which is received into the 

 prothorax. 



444. S. flavicollis. Nigro-picea nitida, fortiter punetata, subtiliter 

 pubescens, capite, thorace, antennis pedibusque ferrugineis ; thorace 

 transverse, a basi antrorsum angustato, lateribus late rotundatis, apice 

 truncate, angulis anticis rotundatis, posticis vix rotundatis disco postice 

 utrinque vage oblique impresso, basi subsinuata vix subtiliter margi- 

 nata ; elytris thorace paulo latioribus. Long. '13. 



Scraptia flaricollis HALD. Jour. Acad. Nat. Sci. Phila. 2d ser. I, 100. 



Middle, Southern, and Western States ; rare. 



445. S. nigosa. Fusco-picea subnitida, dense punetata, pubescens, 

 thorace transverse, a basi antrorsum angustato, lateribus late rotundatis, 

 apice truncate, augulis anticis rotundatis, posticis subrotundatis disco 

 postice utrinque subimpresso, basi bisinuata subtiliter licet distincte 

 marginata ; elytris thorace vix latioribus, humeris dilutioribus ; ore 

 antennis pedibusque fusco-testaceis. Long. -11 -13. 



Scraptia rugosa HALD. Jour. Acad. Nat. Sci. Plrila. 2d ser. I, 200. 



Middle and Western States. Differs from the preceding by the 

 less convex and more densely punctured thorax, and the less 

 shining lustre, as well as by the uniform color. In the male the 

 posterior margin of the 2d, 3d, and 4th ventral segments is 

 membranous. 



