THE CANADIAN ENTOMOLOGIST. 249 



7. Wing and nervures whitish albipennis- 



Wing and nervures ordinary Cressonii. 



8. Head distinctly longer than broad ; cheek narrow ; mesonotum quite 



opaque with fine roughness, sparsely punctured, often a little 



brassy cereopsis, sp. nov. 



Head hardly longer than broad ; cheek broad 9. 



9. Abdomen yellowish testaceous testaceus. 



Abdomen darker 10. 



10. Abdomen obovate ; segments 1-2 shining; 3-5 darker, more opaque, 



with sparse closely-appressed hairs ; mesonotum shining, sparsely, 



finely, punctured ; metathorax nearly smooth. . . .sparsus, sp. nov. 



Abdomen more oval, more densely pubescent, the hairs less 



appressed 11. 



11. Disc of metathorax bordered by a raised line, especially later- 



ally IUi?wensis. 



Disc of metathorax not bordered by a raised line 12. 



12. Abdomen brown, segments 3-5 closely pubescent, .versatus, sp. nov. 

 Abdomen more black, segments 3-5 less pubescent 13. 



13. Raised lines of disc of metathorax not reaching the apex, the latter 



rounded obscurus. 



Raised lines of metathorax reaching apex, which is trun- 

 cate smilacince. 



Males. 



Tegulaa not punctate 2. 



Tegulae punctate 1. 



1. Metathorax with semicircular enclosure ; wing whitish . riymphcearum. 

 Metathorax without enclosure ; wing ordinary tegularis. 



2. Abdomen without greenish or bluish reflection 7. 



Abdomen greenish or bluish 3. 



3. Mesonotum smooth and shining, finely and sparsely punctured ; head 



hardly longer than wide 6. 



Mesonotum finely rugose, opaque, closely punctured . .4. 



4. Head a little longer than wide; clypeus without yellowish; the 



greenish tinge of abdomen slight versatus, sp. nov. 



Head much longer than wide ; apex of clypeus usually yellowish ; 

 abdomen distinctly greenish 5. 



5. Pubescence above and nervures and stigma yellowish ...... .piiosus. 



