AND EASTERN NEW MEXICO. H 



Pjg'dio v ' x granulato, baud carinato ; 



ovato-rotundatus, supra granulatus praticola. 



rotundatus, supra baud granulatus abrasus. 



b. Prothorax pleuris margine versus angulum anticum tuberculo nullo (pro receptions 



pedum parum concavis). 

 * Clypeo 6-dentato, dentibus externis parum prominulis ; 



rotundatus, ater, granulis depressis parcis obsitus simplex. 



** Clypeo 4-dentato, dentibus internis acutis ; 



rotundatus, nitidus, nigro-cyaneus, punctulatus cyanelhis. 



B. Prothorax pleuris Hnea transversa a coxis procedente notatis, antice pro receptione 

 peduni subito declivibus ; (clypeus dentibus iuternis obtusis reliquis obsoletis). 



thorace punctato, elytris subopacis (cupreus, vel viridis) viridis. 



thorace fortius punctato, elytris nitidis puuctulatis perplexus. 



The species in the above synopsis, not before mentioned, are : 



C. depressipennis. A black, or greenish black species found in Georgia, resem- 

 bling very closely C. ebenus, and only differing from that species by the body being 

 less oblong, the thorax less suddenly rounded on the sides, and the granulations of 

 the upper surface more minute. Long. -30 '35. 



C. abrasus. A small rounded dull black species, from Georgia, with the eyes 

 broader than usual, having no visible sculpture on the head and thorax, and very 

 feebly granulate on the elytra, which are depressed in the scutellar region : the 

 striae are very indistinct, the pygidium not granulate. Long. *24. 



C. cyanellus. A shining, very dark blue rounded species found in Texas, and 

 given me by Mr. Ulke, having the clypeus oblique on the sides, and 4-dentate in 

 front, the middle teeth being narrower than in the other species ; the thorax is 

 very minutely punctulate, much rounded and almost angulated on the sides, with 

 a fovea remote from the margin opposite the widest part; the elytra are feebly 

 punctulate, obsoletely striate, impressed at the scutellar region. Pygidium dull, 

 obsoletely punctulate. Margin of the prothorax beneath without the small tubercle 

 usually seen near the anterior angle. Long. -37. 



Synonyms to be observed are : 



C. Icevis : Scarabceus Icevis Drury, Oliv. ; Scarabceus volvens Fabr. ; Ateuchus 

 volvens Fabr. ; Scarabceus pilularius J De Geer. Coprobius oblusidens Ziegler, is a 

 slight variety of this species. 



C. viridis: Copris viridis Beauv. ; Onthophagus viridicatus Say. Ateuchus obso- 

 letus Say, is a copper-colored variety of this species, which is more frequently found 

 on leaves than in any other situation. Chevrolat (Ann. Ent. Soc. France, 2d ser. 

 X, 632) refers Beauvois' species to Onthophagus, but I do not see anything in the 

 figure or description to warrant such a reference. 



Ateuchus probus Germ., Ins. Nov. 98, probably belongs to this genus, but I do 

 not know any species that agrees with the description. 



.11 I>:L t \OI*IIIM ESCH. 



M. miranda, nigra, senescens, subtiliter dense punctnlata, capite guttis quinque politis, circulo 

 positis, thorace guttis quatuor anticis (intermediis maioribns), altera utrinque pone medium, 

 lineaque dorsali postica nitidis lasvigatis; elytris margine basiqne ten niter rubris, lineisque flavis 

 decussatis ornatis. Long. -65. Tab. II, fig. 7. 



