AND EASTERN NEW MEXICO. 23 



Fort Riley: Mr. Xantus. Closely related to C. dominicana, but differs by the 

 pubescence of the upper surface being much more dense, and by the elytra being 

 more densely punctured. The sexual characters are as in that species. 



CRYPTOCEPHAL,IJS GEOFFR. 



C. mucoreilS; cylindricus, niger nitidus, subtus dense, supra subtiliter cinereo-pubescens, thorace 

 convexo, subtiliter sat dense punctato, spatio parvo dorsali loevi, elytris basi margineqae ultra 

 medium late coccineis, maculaque coccinea rotundata apicali utrinque ornatis, punctis magnis 

 striatim digcstis, iuterstitiis parce subtiliter punctatis. Long. -25. 



Fort Riley, one specimen : Mr. John Xantus. It has also been received from 

 Texas by Mr. Ulke. A very distinct species ; the elytral markings are a broad 

 basal band curving along the margin to beyond the middle, and a small apical spot. 

 Some of the varieties of O. notatus are similarly marked, and it is quite possible 

 that the present species will be found also to vary in this respect. 



PARIA LEC. 



P. opacicollis, pallide flava, thorace latitudine fere duplo breviore, valde convexo, alutaceo sub- 

 opaco, parce subtiliter punctulato, lateribus late rotundatis, elytris antice fortiter posticc subtilius 

 striatim punctatis, nitidis, margine postice, sutura, maculisque 4 srcpe nigris. Long. -13. 



Fort Laramie : a very pretty species, readily distinguished by the faint sculpture 

 of the thorax. The spots are placed, an oblong one at the middle of the base, and 

 a larger quadrate one at the middle nearer the side than the suture. 



P. plllllila, saturate rufo-testacea, nitida, thorace convexo, quadrate, antice paulo angustato, 

 lateribus parum rotundatis, parce punctato, elytris convexis, punctis paucis striatim positis ad 

 basin majoribus, postice fere laavibus ; anteimis nigris, ad basin pedibusque flavis, pectorc nigro. 

 Long. 10. 



One specimen sent me by the late A. Mclly, Esq., as coming from Kansas. The 

 strife consist only of a few distant large punctures towards the base, which become 

 rapidly smaller and indistinct behind. 



IIETERASPIS. 



II. Iieblllosa, cuprea, pube longa albida irregulariter vcstita, capite inter oculos profunde angu- 

 latim impresso, fronte canaliculata, occipite bifoveato, thorace irrcgularitcr punctato, latitudine 

 hand longiore, ad basin truncato, lateribus rotundatis, elytris thorace latioribus convexis, striis 

 grosse punctatis haud iinpressis postice obsoletis, interstitiis alutaceis. Long. -15 19. 



Kansas, near Fort Laramie. The genus Ilcteraspis belongs in the vicinity of 

 Eumolpus, and is distinguished from the other native genera by the following 

 assemblage of characters : 



The mouth and eyes are not protected by the thorax, which beneath is simply 

 truncate ; the head is marked with a deep impression between the eyes ; this 

 impression is angulated each side, and continues around the inner posterior and 

 inferior part of the eyes, forming a kind of orbit. The ungues are armed with a 

 long acute tooth in // pubescens Mels. ; with a short acute tooth in II. cnrtlpennvi 

 Mels., and in the next species, while in the one here described the tooth is almost 

 obsolete. 



