﻿270 LE CONTE.—SYNOPSIS OF THE 



One specimen, Texas, Mr. Haldeman. Very similar to D. truncatula, but differs by 

 the thorax being not so much narrowed in front, less rounded about the posterior 

 angles and less densely punctured. The feet are brownish, the anterior tibiae as in 

 D. truncatula. 



17. D. carbonata, oblonga, atra subnitida, capite dense punctata, clypeo vix bemibexagono, tenuiter 



marginato, thorace minus dense punctata, lateribus valde rotundatis, angulis posticis obtusis rotun- 

 datis, elytris punctis fortibus fere omnibus seriatis, subtricostatis, tibiis anticis tridentatis. Long. 

 •27 — 3. 

 New Mexico and Texas, Messrs. Clark and Webb. The punctures except near the 

 sutural line are hardly confused, the interstices are marked with ranges of small punc- 

 tures ; the upper tooth of the anterior tibiae is obtuse but obvious. 



18. D. atratula, oblonga, atra subnitida, capite dense punctata, clypeo bemibexagono, antice late 

 emarginato, modice marginato, tborace fortius punctato, lateribus antice obliquis parum rotundatis ad 

 angulos posticos fortius rotundatis, elytris punctis fortibus fere omnibus seraitis, vix tricostatis, tibiis 

 anticis fortiter tridentatis. Long. -3. 



Frontera, New Mexico, Mr. Clark. Of the form size and color of D. carbonata, but 

 differing in the sides of the thorax being oblique and hardly rounded, except near the 

 posterior angles ; the punctures of the elytra are not confused near the sutural line, 

 and the interstices are not punctured. The legs as usual are brown, and the upper 

 tooth of the anterior tibiae is strong and acute. 



19. D. m o r u 1 a , elongato-oblonga, atra subnitida, capite confertim punctato, clypeo bemibexagono, anguste 

 marginato antice truncato, sutura frontali profunda, tborace sat dense punctato, lateribus antice obliquis 

 postice cum angulis rotundatis, elytris fortius punctatis, tricostatis, tibiis anticis fortius tridentatis. 

 Long. -3. 



One specimen, Kansas. Narrower than the preceding species, from which it also 

 differs, not only by the posterior angles of the thorax less suddenly rounded, but by 

 the punctures between the geminate rows being confused ; the costae themselves are 

 marked with a few small punctures. The legs are brown, and the upper tooth of the 

 anterior tibiae is strongly marked- 



20. D. punctata, nigro-picea, oblonga, convexa, nitida, capite confertim punctato, marginato, bemihexa- 

 gono, antice late truncato, sutura frontali impressa, tborace fortiter minus dense punctato, lateribus 

 antice obliquis, pone medium valde rotundatis fere angulatis, angulis posticis perobtusis, elytris fortius 

 punctatis, subcostatis, tibiis anticis fortius tridentatis. Long. -32. 



One specimen, Frontera, Rio Grande, Mr. Clark. The punctures of the two inner 

 interstices of the elytra are confused, but the costae are not very distinct ; the costae 

 are marked with a row of fine punctures. 



21. D. cribulosa, oblonga, subovata, ferruginea nitida, parce fulvo-pubescens, capite fortius dense punctato, 



marginato, bemihexagono, antice late truncato, sutura frontali impressa, tborace fortiter minus parce 

 punctato, lateribus rotundatis, antice obliquis, angulis posticis obtusis, elytris fortiter punctatis, sub- 

 costatis, tibjis anticis subtridentatis. Long. *34. 



