10 COLEOPTERAOFKANSAS 



jointed antennas and simple ungues. The rough sculpture and short sparse pubes 

 cence give the insect very much the appearance of an Ochodccus. 



D. rildis, ferrugineo-fuscus, oblongus, parum nitidus, pilis brevibus minus subtilibus, albidis minus 

 dense vestitus, capite punctato, hemihexagono, clypeo antice latius emarginato, thorace convexo 

 antrorsum angustato, lateribus valde rotundatis, dense punctato, elytris rugose punctatis, sutura 

 costisque solitis tribus parum elevatis, pygidio confertim punctato. Long. -30. 



Two specimens from the black hills: Dr. W. A. Hammond. The punctures are 

 large and not deep. The body beneath is more shining, and less densely punctured. 



OJVIORGUS EB. 



Ot SCIltellaris, apterus, niger, thorace cataphracto valde inaxmali, lateribus rotundatis, elytris 

 seriatim minus distincte punctatis, transversim cselatis, interstitiis subquadratis, subrequaliter 

 parum elevatis. Long. -6 - 65. Tab. I, fig. 4. 



LEO. Proc. Acad. Nat. Sc. Til, 214. 



Trox scutellaris SAY, Journ. Acad. Nat. Sc. Ill, 238. 



From Platte river to Santa Fe. Other nearly allied species found in Texas are 

 described by me in the place above cited ; from all of them, however, it may be 

 distinguished by the assemblage of characters here given. 



CAUfTHOW ILLIGER. 



C. praticola, subovatus, ater opacus, supra subtilius licet evidcnter granulatus, clypeo 6-dentato, 

 dentibus duobus mediis obtusis, reliquis latis modice prominulis, thorace brevi convexo, lateribus 

 valde rotundatis, elytris capite thoraceque vix longioribus, basi late emarginatis, lateribus et apice 

 rotundatis, planiusculis versus scutellum paulo impressis, striis parum distinctis ; thorace subtns 

 versus angulum anticum tuberculo minuto marginal! instructo, pro receptione pedum parum exca- 

 vato, pygidio convexiuscnlo, parce subtiliter granulate. Long. -27 37. 



Kansas and New Mexico. Resembles C. nigricornis, but the form is less abbre 

 viated, the lateral teeth of the clypeus are more prominent, the elytra are less 

 sparsely granulate, and the pygidium is more finely granulate, not impressed or 

 carinate towards the base. 



For the purpose of enabling the relations between the species of Cantlion inha 

 biting the United States to be understood, as well as of providing names for several 

 nondescript species, I add the following synoptic table : 



A. Prothorax pleuris linea transversa a coxis procedente obsoleta vel nulla. 



a. Prothorax pleuris margine versus angulum anticum tuberculo minuto subinterrnpto. 



* Clypeo rotundato, bidentato ; (species magna?). 



rotundatus supra granulatus, oculis latiusculis mgilans. 



rotnndatus, oculis angustissimis ; 



supra evidenter granulatus Isenis. 



obsolete granulatus clialcites. 



** Clypeo 6-dentato; (species minores). 

 Pygidio rude granulate, basi plus minus carinato ; 



clypei dentibus omnibus magnis ; 



oblongo-rotundatus, supra rude granulatus ebenus. 



rotundatns, supra subtilius granulatus depressipennis. 



clypei dentibus lateralibus minus prominulis ; 

 breviter rotundatus, supra subtiliter, elytris pa reins granulatus nigricornis. 



