CRYPTOCEPHALINARUM BOREALI-AMERICAE DIAGNOSES. 255 



9 with the ultimate ventral segment deeply foveolate. Abdominal plate, a spot on 

 the presternum, anterior coxae, and interior margin of the anterior femora white- 

 Antennae black, five basal articulations rufous. Pensylvania and upper Mississippi 

 river. 



27. C. FULViPENNis Hald. 4.Lec. Niger ; antennis breviuscuUs, palpisque rufis : 

 pronoto polito subtiliter punctate : elytris profunde seriatim punctatis, aurantiacis ; 

 pygidio punctato, subcarinato. Long. 2 lin. 



Black with a ceruleus tinge : front punctate, with an impressed medial line ; palpi, 

 labrum and antennae pale rufous, the latter short, and darker towards the apex : 

 pronotum with a row of punctures in the recurved lateral margin : scutel and extreme 

 base of the elytra black : beneath and feet shining blue-black ; venter punctate, with 

 silvery hairs. Southern. 



E. 



28. C. MAMMiFER Nm. 1840. Mag. n. h". 4,250. — pretiosus Mels. Pr. Acad. 

 3,174 :16. Niger, nitidus : capite fiavo, fronte nigro, punctato, in medio impresso; 

 labro, antennarum basi, palpisque rufis : pronoto sparse punctulato ; apice tenuissimo, 

 angulis, maculisque 2 obliquis basalibus albidis : elytris punctato-striatis ; apice, fascia 

 praemediali (ad suturam late interrupta) lineolisque 3 basalibus aurantiacis. Long. 2 

 lin. 



a. Pronoto immaculate. 



The anterior spots in the angles of the pronotum are the largest, and it is possible 

 that the entire lateral margin may be found white. The anterior margin of the 

 mesosternum has a whitish spot, there is another on the anterior coxae, a small one 

 on each side of the pygidium, and the ventral plate is of the same color. Beneath 

 punctulate, venter of the 9 with a deep fovea. Pensylvania, Carolina, Florida. 



29. C. NOTATUS F. 2,55 ;76. Oliv. enc. 6,618. Niger, antennis filiformibus ; 

 pronoto dense punctato, apice contracto ; elytris grosse punctato-striatis, interstitiis 

 convexis; puncto apicali, fasciaque praemediali (suturam Adx attingente) aurantiacis : 

 pygidio partibusque inferioribus grosse punctatis. Long. 2 lin. 



Robust, head with a few coarse punctures ; antennae remarkably slender, black, 

 second, third, fourth, and fifth articulations with a rufous tinge : prothorax much 

 contracted anteriorly. Southern. 



30. C. DiSTiNCTUS Bald. 4.Dej. ,447". Niger, nitidus, capite punctato, antennarum 

 basi fusco, labro llavo vel fusco-marginato : pronoto convexo, obsolete sparsim 



65 



