﻿268 LE CONTE— SYNOPSIS OF THE 



7. D. frontalis, oblonga, nigro-picea, nitida, capite fere rotundato, margine reflexo, grosse occipite parce 



punctato, sutura frontali profundo, fronte transversim carinata medio subimpressa, tborace parcius 

 punctato, lateribus medio rotundatis, angulis anticis acutis, baud acuminatis, elytris rude puiictatis sub- 

 costatis, tibiis anticis subtridentatis. Long. - 35. 



Georgia. Of the same appearance as the last, from which it only differs by the 

 thorax being hardly perceptibly impressed at the angles, instead of being deeply ex- 

 cavated. Perhaps this may be a sexual character. 



D. punctatorugosa Blanch, having the front transversely elevated, must 

 belong to this group. Blanchard, however, describes it as " breviter ovata," while 

 according to Burmeister, who does not mention the form, the anterior tibiae are acute- 

 ly 3-toothed. 



IV. 



8. D. angular is, elongata cylindrica, ferruginea nitida, capite punctato, bemibexagono, margine reflexo, 



ad apiceni late emarginato, angulis acutis prominulis, sutura frontali mediocri, vertice late convexo, 

 tborace modice punctato, antrorsum angustato, lateribus pone medium fortius rotundatis angulis obtusis, 

 elytris punctatis, tricostatis, tibiis anticis tridentatis. Long. -3. 



Copper Mines of the Gila, Dr. Webb. The female is slightly ovate. The apical 

 reflexed margin of the clypeus makes with the lateral margin a reentering angle. 



V. 



9. D. m o e r e n s, oblonga, minus convexa, picea vel nigro-picea subnitida, capite confluenter punctato, 



piano, bemibexagono, tenuiter marginato, antice late emarginato, sutura frontali parum impressa, tborace 



confertim punctato, lateribus rotundatis, angulis posticis obtusis, elytris fortiter punctatis, punctis fere 



omnibus seriatis, vix tricostatis, tibiis anticis tridentatis. Long. -44. 



Vallecitas, California. Of the size, form and color of D. tristis; the inferior 



portion of the claws is rather shorter than usual, and the labrum is deeply emarginate. 



10. D. punctipennis, oblonga, convexa, ferrugineo-picea nitida, capite fortiter punctato, clypeo rotun- 



dato, latius marginato, sutura frontali impressa, thorace sat dense fortius punctato, lateribus valde rotun- 

 datis angulis posticis obtusis, elytris grosse punctatis, punctis fere omnibus seriatis, vix tricostatis, tibiis 

 anticis fortiter tridentatis. Long. -44. 



Texas, Mr. Haldeman. The spaces which represent the usual costae, and the 

 suture are marked with a row of smaller punctures. The inferior part of the ungues 

 is shorter than the upper, but not so much so as in D. moerens. 



11. D. t ex an a, oblonga, convexa, fusco-ferruginea nitida, capite dense punctato, clypeo rotundato, anguste 



marginato, sutura frontali impressa, tborace fere dense punctato, lateribus modice rotundatis, angulis 

 posticis obtusis, elytris punctatis tricostatis, tibiis anticis tridentatis. Long. -38. 



New Braunfels, Texas, Mr. Lindheimer. The punctures between the costae are 

 confused; the costae are marked with a row of smaller punctures; the teeth of the 

 anterior tibiae are not large, and are more close than usual. The clypeus in one 

 specimen is semicircular, but in the other is feebly hemihexagonal. The under part 

 of the ungues is hardly shorter than the upper. 



