THE CANADIAN ENTOMOLOGIST. 135 



paler at articulations, clothed with very short dark hairs or bristles ; two 

 basal joints piceous, margined apically with luteous ; basal joint set in a 

 luteous ring. 



Vertex elevated behind, rounded, luteous ; post-antennal area 

 fuscous, thinly clothed with white and black hairs ; elevated portion 

 marked by two transverse black bands, the anterior of which is narrow 

 and shining, forming a ridge on each side, posterior band spread out each 

 side to form two large, somewhat triangular spots, and connected with the 

 anterior band by the black longitudinal median furrow ; behind this 

 furrow is a median oval black spot, longitudinally divided by a faint 

 luteous line. 



Pronotum as broad as long at base, narrowed anteriorly, truncate in 

 front, sparsely clothed with white and black hairs, especially on margins ; 

 black, a narrow longitudinal median line, which is enlarged at the 

 transverse furrow, and one each side, luteous. Lateral carinte luteous. 

 Beneath luteous, margined on each side with black. 



Mesonotum black, lobes not strongly elevated ; anterior lobe with a 

 spot each side near front margin and a longitudinal median line, luteous ; 

 this line is interrupted before the posterior lobe, but continued upon the 

 latter ; another longitudinal luteous line each side (probably a con- 

 tinuation of the spots on anterior lobe) extending to the posterior margin, 

 which is also luteous ; a few spots of similar colour on each lateral lobe ; 

 posterior lobe shining black, except where marked by luteous as mentioned 

 above. Below black, marked with luteous, especially on sides ; sparsely 

 clothed with white hairs. 



Metathorax black, with luteous markings similar to those of meso- 

 thorax, but no median line on posterior lobe and fewer spots on lateral 

 lobes ; posterior lobe not shining. 



Abdomen shorter than wings, rather slender, clothed with white 

 hairs, more thickly at base. Black ; segments (except one or two basal 

 ones) marked on dorsum each side, in middle and at apices, with a 

 luteous spot ; these spots are more pronounced on the apical segments. 



Tip clothed with long black hairs ; below a transverse double row 

 of coarse black spines and two short, cylindrical, brown appendages 

 clothed with long black hairs ; a short brownish plate between the latter 

 at their base. 



Legs of moderate length, yellow, thickly sprinkled with black ; beset 

 with many black and white spines. Posterior femora almost entirely 



