350 Catalogue of the Gcodcphagons Colcoptcra. 



angulia posticis obtusis, leviter rotundatis; linca arcuata plici- 

 fonni obsoleta, margini anteriori approximata, imprcssione trans- 

 versa anteriore indistincta, posteriore Batis profunda, basalibus 

 rotundatis, profundis, impunctatis, bistriatis, striis postice arcua- 

 tim connexis. Elytra thorace non latiora, planiuscula, ovalia, 

 latitudine fere duplo longiora, humeris satis distinctis ; opacius- 

 cula, profunde striata striis impunctatis versus apicem minus 

 impressis, interstitiis accurate planis, 7mo prope basin levissime 

 elevato. 



Optimo facit transit! onem ad § 4, ha>c species. 



§4. Thorace subquadrato, postice leviter retracto, lateribus ro- 

 tundatis, margini tenui reflexo, versus basin paulo latiore, 

 basi utrinque striato, carinaque externa munito. 

 t Ely tris leviter striato-punctatis, stria abbreviata rudimentali vix 

 conspicua, inter Imam e t riixlam s ita ; interstitio 3k> unipuncta- 

 to : habitus ovalis, subelongatus, crassiusculus. 

 1. her OS. Say. Journ. Ac. Nat. Sc. Vol. III. 



(t in ( ri can a . Dej. Sp. Gen. Habital inprovinciis austra- 

 libus, e! in Texas : a Dom. Dr. Engelman benevole 

 data. 

 •j. > i g i 1 I ;i I a . Say. Trans. Am. Phil. Soc. Vol. II. 



vidua. I>'j. Sp. Gen. Habitat in provinciis mediis rarius. 

 3. * s c \ i in |) r e SSa. Nigra, opaciuscida, thorace subquadrato, 

 lateribus magis rotundato, basi utrinque triimpresso, 

 ilijtr'tx jdititiusriilis. Lung. •<;•_>, l;it. •:.'•>. Habitat ail 

 Rocky Mountains, prope Long's Peak. 

 Nigra, vix nitida; palpi ipicei : mandibular glabra:. Caput lot- 

 ii in line scsijui longius, lae ve, impressionibus frontalibus rectis, pro- 

 fundis, linea transversa tenui, levij uculis parvis prominulis. 

 Thorax Bubquadratus, antice posticeque truncatus, lateribus valde 

 rotundatus, postice levissime retractus, angulis posticis leviter 

 obtusis, apice rotundatis; margine tenui reflexo; disco levitei 

 convexus ; impressione transversa anteriore valde profunda, lin 



