DESCRIPTIONS OF NEW SPECIES. 219 



e. Protliorax longer than wide, subcampanulate, with a deep trans- 

 verse impression near the base, hind angles broad, laminate ; 

 color black, elytra sometimes testaceous, scarcely narrowed 

 behind ; antennae with the 4th joint very short ; 

 Protliorax coarsely, elytra very coarsely, punctured, truncate, and spinose ; 



antennas J short, thickened externally. 34. brevicornis n. sp. 



Prothorax densely and coarsely punctured, antenna? slender, elytra 



sharply truncate at tip. 35. nigrellv. 



Prothorax sparsely punctured, antenna? slender, elytra feebly truncate at 



tip. 3(j. CARBONATA. 



B. Prothorax more or less triangular or campanulate, widest at base, 

 hind angles not prolonged. (Antennae with 4i joints punctured, 

 the remainder sericeous ;) LEPTURA restrict. Serville. 



a. Antennae annulated with yellow, 11th joint distinctly divided; 



elytra narrowed from the base, tip truncate and dentate ; % 



with antennae serrate, and 5th ventral flattened triangularly, 



emarginate, and bidentate (sculpture usually coarse, prothorax 



deeply bisinuate at base with a deep transverse impression) ; 



Elytra truncato-emargiuate at tip ; prothorax more deeply constricted 



behind ; 11th joint of antennae strongly appendiculate. % antenna 1 



strongly serrate, almost entirely black, tenuicornis Hald. ; 9 antennae 



feebly serrate, annulate with yellow; a. Elytra coarsely punctured not 



shining; 1, base of elytra red, canadensis Fabr. ; 2, elytra entirely red, 



erylhroptera Kirby, cinnamoptera Hald. ; /?. Elytra almost cribrate, 



shining; 1, elytra entirely red, cribripennis Lee. ; 2, elytra red at the 



base; 3, elytra entirely black . 37. canadensis. 



Black, prothorax and elytra bright red, more densely and finely punctured, 



antennae not annulated. 38. coccinea n. sp. 



Elytra truncate at tip, prothorax feebly constricted behind ; 



elytra entirely red, antennae joints 1-5 black, 11th joint feebly appen- 

 diculate. % antenna? feebly serrate, abdomen red ; 9 antennae nearly 

 filiform, abdomen black ; erythroptera \\ Germ. 39. RCTBrica. 



elytra pale, side margin and tip black. 40. circpmdata. 



b. Elytra narrowed from the base, very dehiscent at tip, which is 



rounded and indistinctly margined ; prothorax feebly con- 

 stricted at base, antennae subserrate in % with 11th joint feebly 

 appendiculate ; 

 Antennae annulate with yellow, elytra very coarsely punctured, more or 

 less testaceous, sometimes entirely black ; % with 5th ventral deeply 

 excavated and emarginated. 41. vagaxs. 



Antenna? entirely black, elytra less coarsely punctured (testaceous in the 

 specimens examined) ; % with 5th ventral less excavated and emargi- 

 nated. 42. DEHISCENS. 



c. Antenna? not annulated, 11th joint scarcely appendiculate, elytra 



slightly narrowed from the base, truncate at tip ; prothorax 

 scarcely constricted behind ; 



