42 PROCEEDINGS OF THE ACADEMY OP 



joints, and by the lateral spine of the thorax. The species are red and black 

 in color, and resemble in appearance Purpuricenus, which they replace in the 

 interior regions of the continent. 



17. Oxoplus coralinus laste coccineus, capite antennis pedibus metatho- 

 racis lateribns plagaque maxima comtmiui elytrorum postica nigris ; elytris 

 fortiter sat dense punctatis. Long. -70 -80. 



New Mexico ; Mr. Ulke. The large common spot of the elytra extends from 

 the middle to the tip along the suture, but the red along the margin reaches to 

 within one-fifth of the tip. 



18. Oxoplus cruentus, coccineus, capite antennis pedibus scutello elytris 

 que nigris, his confertissime punctatis basi margineque laterali fere ad apicem 

 coccineis. Long. -85. 



Cape San Lucas ; Mr. Xantus. Resembles the preceding, but the lateral 

 spine of the thorax is larger; the eljtra are more densely and finely punctured, 

 and the black extends to within one-seventh of the base. 



19. Oxoplus marginatus, subtus fusco-coccineus, supra niger, opacus, 

 pube brevi helva sericea vestitus, thorace spinis rufo-tinctis, elytris confertissime 

 punctatis basi margineque laterali fere ad apicem coccineis. Long. "95. 



Cape San Lucas ; Mr. Xantus. Differs from the preceding not only in color, 

 bnt by the very obvious pubescence and by the punctures of the elytra towards 

 the base being larger. 



20. Clytus approximatus, ferrugineo-fuscus, subtilitsr pubescens, 

 thorace latitudine longiore, ovali, confertissime granulato-punctato, ad medium 

 cariuulis transversis armato, altera utrinque prope basin; elytris apice oblique 

 truncatis, fascia recta mox ante medium, altera obliqua approximata ad sutu- 

 ram angulata, tertia latiore ad dodrantem, scutelloque flavo-pubescentibus; 

 femoribus posticis abdomine longioribus, vix spinosis. Long. -33 -45. 



Kansas ; Mr. Ulke. Allied in form and sculpture toC. erythrocephalus; 

 the second elytral band commences on the side behind the middle, runs obliquely 

 forwards nearly to the suture, when it is suddenly angulated and reaches the 

 suture; the point of the angle approaches closely to the first band; body be- 

 neath banded with yellow hair. 



21. Clytus h o rr i d us, linearis, fusco-piceus, cinereo-pubescens, thorace lati- 

 tudine fere sesqui longiore, subcylindrico, dorso carinulis acutis 6, alteraque 

 utrinque ante basin armato, minus subtiliter granulato, granulis punet>geris; 

 elytris apice oblique truncatis, basi, fascia angusta saepe iuteirupta vel obsoleta 

 ante medium, altera angulata mox pone medium, tertiaque obliqua ad dodran- 

 tem albo-pubescentibus, femoribus posticis maris abdomine longioribus, fe- 

 minas brevioribus. Long. -30 40. 



Middle States. The middle band makes an acute angle on each elytron, the 

 apex being directed towards the base. The suture is more or less clothed with 

 white pubescence; beneath a white spot is seen each side of the metasternum. 

 This species belongs near C. leucozonus. 



22. Pteroplatus ? floridanus, niger opacus, supra rude punctatus, thorace 

 fulvo, vittis 3 nigris, doisali latiore, latitudine breviore, rotundato, parum con- 

 vexo ; elytris thorace paulo latioribus, sutura margine costisque utiinque 

 3 elevatis, his postice obsoletis ; basi margineque externo laste fulvo ; antennis 

 corpore duplo brevioribus, haud cristatis, articulo 5to 4to longiore, llnio sim- 

 plici, apice subacuto. Long. -37. 



Florida; Mr. Kdward Norton. The anterior coxae are not transverse, and 

 their cavities are very slightly angulated externally, about as much so as in 

 Atimia. 



23. Asemum a s p e r u m Lee. has the eyes prominent, and coarsely granulated 



[Feb. 



