158 THE CANADIAN ENTOMOLOGIST. 



2. Anal fimbria pale ochreous. 



Dorsulum rugose, not distinctly punctured nmphibola. 



Dorsulum partly rugulose, but with distinct punctures .... indotata. 

 Anal fimbria dusky dark brown or black. 



Sculpture of the elevated portion of abdominal segments dense, 



dullish 4. 



Sculpture of raised portion of abdominal segments not dense, 



shining 3. 



3. Face and pleura with black hairs cupreotijicta. 



Face and pleura with ochreous hairs ochrcopleura. 



4. Hairs on dorsulum thick crassihirta. 



Hairs on dorsulum thin. 



Abdomen coarsely punctured, metathorax coarsely 



sculptured perdensa. 



Abdomen finely punctured, sculpture of metathorax not 



coarse 41^. 



4^4- Pubescence on dorsum brownish, first segment of abdomen shining, 

 punctures well separated, as are the striae of the area on 



metathorax hadra. 



Pubescence on dorsum whitish, first segment of abdomen dull, 

 punctures close together, as are the strise of the area on 



metathorax iimarea. 



5 Anterior half of dorsulum with distinctly contiguous punctures ; 



usually dull 7. 



Anterior half of dorsulum with punctures separated ; usually 



shining 6. 



6. Dorsulum shining ; first segment closely punctured ; lower half of 



frontal fovea broader than the adjoining shining space ; tibife and 

 tarsi of posterior legs, tarsi of anterior and middle legs pale 

 honey colour or nearly hippotes. 



7. Anterior half of dorsulum dull. 



A sharp demarcation between enclosure and adjoining area at the 

 sides ; dorsulum rather dull salicifloris. 



No sharp demarcation between enclosure and adjoining area at the 

 sides \ dorsulum rather shining salicifloris var. 



8. Distinctly separated punctures scarce or absent on dorsulum. 



Dorsulum rugose ; abdomen blue cleodora. 



Dorsulum not rugose ; abdomen black 9. 



Distinctly separated punctures numerous on dorsulum 10. 



