432 APPENDIX. 



[LeConte. 



Black, covered with minute cinereous hairs, thorax impressed. Elytra, 

 region of the scutel and middle of the base indented. 



Inhabits United States. Body black, covered with short minute robust 

 recurved hairs, punctured. Antennae rufous, club dusky. Thorax a 

 little convex each side, behind the middle of the side rectilinear; a little 

 contracted before with an indented line above, more profound near the 

 base, with dilated, confluent, slightly impressed punctures, not deeply 

 sinuated at base, with regular series of punctures. Elytra, region of the 

 scutel indented ; abdomen dull fulvous behind. Length nearly seven- 

 twentieths of an inch. 



[This species is said to occur on the lower Mississippi and in the Atlantic 

 States. I have not identified it, nor was it known to Gyllenhal, who 

 merely cites Say. ] 



14. Tychius aratus Say, Cure. 26 ; ed. Lee., i, 294. 



Body entirely covered with pale olivaceous, dense, elongated or rounded 

 scales ; rostrum as long as the head and thorax, linear ; scales like robust 

 hairs ; transversely indented over the insertion of the antennae ; a longi- 

 tudinal impressed line ; tip naked rufous ; thorax with the hair-like scales 

 converging backwards to the dorsal line. Elytra with indented striae, 

 punctures are not visible, with densely imbricated, rounded scales ; mid- 

 dle of the interstitial lines with a ser^s of prostrate scale -like hairs ; 

 thighs unarmed, emarginate. 



Inhabits Missouri. Length three-twentieths of an inch. Can this be 

 0. penicellus, Herbst? 



15. Oonotrachelus conflnis Fahrseus, Sch. Cure, iv, 430. 



Ovalis, niger, pube grisea parce adspersus ; rostro basi superne, anten- 

 nis, femoribus posterioribus medio, tibiis, tarsisque rufo-testaceis ; thorace 

 ampliato, rugoso-punctato, linea utrinque flexuoa densius griseo-tomentosa ; 

 elytris pone medium late griseo-fasciatis ; interstitiis alternis modice 

 elevato-costatis, costa intima pone medium interrupts ; femoribus sequal- 

 iter bidentatis. 



Pennsylvania. The long description adds little to the diagnosis, which 

 indicates a species allied to and perhaps identical with C. elegans, p. 228. 



16. Rhytidisomus orobinus Schiodte, Berl. Ent. Zeitschr. 1859, 141. 

 Nigro-piceus, unicolor, antennis pedibusque runs, elytris callo himierali 



protuberante, interstitiis sulcorum dorsalium angustis, acute elevatis, im- 

 bricato-dentatis, lateralium latis, convexiusculis, sublsevibus, singulis serie 

 punctorum simplici impressis. Long, lin." 



Greenland. I infer from the remarks appended to the diagnosis, that this 

 species differs from the European R. globulus by the smaller size, as well 

 as by the characters above given. 



17. Bhynchsenus umbellaB Fabr., Syst. El. ii, 450. 

 Nigricans, elytris striatis, scutello albo. 



Habitat in Carolina, Mus. Dom. Bosc. Statura R. pericarpii at major et 

 alius. Caput nigrum. Thorax Isevis, nigricans, immaculatus. Elytra 



