than the striae, obtuse; edge dark blue; humeral 

 edge not dilated nor reflected : epipleura punc- 

 tured : pectus punctured at base : posfpectus and 

 venter each side at base, punctured. 



OBSERVATIONS. 



This species is not uncommon in Penn- 

 sylvania. I have also received a specimen from 

 3 Jr. Charles Pickering, taken in Massachusetts. 



The left figure of the plate. 



SPH^RODERUS BILOBUS. 



SPECIFIC CHARACTER. 



Violaceous; beneath black; margins not re- 

 flected ; basal thoracic lines obsolete. 

 PLATE 45. 



