AND EASTERN NEW MEXICO. 3 



tured at base. A very similar nondescript species from New Jersey was kindly 

 given me by Mr. Guex ; it differs chiefly by the thorax being broader, with the 

 sides less rounded and less narrowed anteriorly. I have named it H. viduua. 



H. dcsertllS, oblongus, piceus nitidus, thorace latitudine breviore, lateribus rotundatis vix ex- 

 plauatis, antice posticeque subangustato, angulis posticis subobtusis, subrotundatis, ad basin 

 utrinquc punctulato et foveato, elytris ad apicem obtuse rotundatis, striis bene impressis, 2nda 

 unipunctata ; antennis palpis pedibusque ferrugineis. Long. '3. 



One immature female : Mr. Fendler. Quite different from any other species 

 known to me, although having somewhat the form of H. meyacephalus Lee. 



H. stupidus, oblongus subovalis, convexus, ater, thorace latitudine plus sesqui breviore, lateribus 

 tenuiter marginatis antice rotundatis, postice subrectis fere parallelis, angulis posticis rectis vix 

 rotundatis, fovea basali utrinque baud profunda, basi tota punctulata, elytris (feminse subopacis) 

 striis impunctatis, interstitiis vix convexis, apice sinuatis, antenuis pedibusque obscure ferrugineis. 

 Long. -46. 



One specimen from route to Fort Bridger : Mr. Drexler. More convex than H. 

 erythropus, with the sides of the thorax not flattened, and the posterior angles less 

 obtuse. From these differences in form, this species has somewhat the appearance 

 of H. funestus Lee., which however has black feet, and is otherwise quite different. 



DICAELVS BON. 



D. laevipennis, oblongo-ovalis, violaceo-niger, thorace antrorsum valde angustato, lateribus 

 rotundatis, elytris tenuiter punctato-striatis, carina humerali ante medium desinente. Long. -7. 

 Tab. I, fig. 1. 



LEC. Annals of the Lyceum of Natural History of New York, IV, 421. 



Platte River Valley, near Chimney Rock. Very different from all other species 

 yet known, by the striae of the elytra being indicated only by rows of punctures, 

 which are less obvious towards the apex and sides. ^ 



NOMARETUS LEG. 



I. cavicollis, seneo-purpureus, nitidus, thorace obovato, postice valde angustato, sulco dorsali 

 profundo, antice disperse punctate, postice latins concavo, profunde impresso et punctate, elytris 

 striis utrinque 12 fortiter crenatis. Long. -45. 



One specimen, Fort Riley : Mr. John Xantus. Resembles N. fissicollis and N. 

 Ulobus (Cychnis Ulobus Say), but differs from both by the anterior half of the 

 thorax being covered with scattered punctures, and the posterior half being broadly 

 concave ; as in those species the posterior angles are obtuse. 



CALOSOlttA FABR. 



C. liixaf iiiu. nigrum subnitidum, capite subtilius pnnctato-rugoso, thorace capite sesqui latiore, 

 latitudine fere triplo breviore, lateribns valde rotundatis, postice angustiore confertim punctato- 

 rugoso, basi late rotundatim emarginato, utrinque vage impresso, elytris rotundato-ovatis, thorace 

 latioribus, striis tenuibus rngisque transversis imbricatim insculptis, versus apicem confuce rugosis. 

 Long. -64 -68. Tab. I, fig. 2. 



SAT, Journ. Acad. Nat. Sc. of Phila. Ill, 149; (nee. Dej. Sp. Gen. II, 196). 



Callisthenes luxatus LEC. Annals of the Lyceum of Nat. Hist. V, 200. 



Carabus luxatus LEC. Ann. Lye. Nat. Hist. IV, 445. 



