THE CANADIAN ENTOMOLOGIST, 



The synoptic table is followed by a list of genera and species. Only 

 those species are placed which I have either seen or could determine 

 from recent works : 



1. Secondaries with veins 7 and 8 from intercostal cell, the bar short, or 



vein 7 from the subcostal vein 2. 



Secondaries with very large intercostal cell, vein 7 near 6 ; the bar 

 long 23. 



2. Primaries 9 lo"g ^"d narrow, apex produced 3. 



Primaries broader 5. 



Wings of female absent 30. 



3. Primaries with veins 8 to 10 stalked Bhhna. 



Primaries with vein 8 not stalked 4. 



4. Secondaries with veins 4 and 5 stalked Taragania. 



Secondaries with veins 4 and 5 from the angle of the cell .... Suana. 



5. Costa of secondaries highly excised Lebeda. 



Costa of secondaries slightly or not at all excised 6. 



6. Primaries with veins 6, 7 free or stalked ; 6 to 8 stalked ; 4, 5 of 



secondaries as above 7. 



Primaries with 6 to 8 stalked; 3 to 5 of secondaries stalked . Syrastrena. 

 Primaries with veins 7 and 8 stalked 21. 



7. Outer margin of primaries evenly rounded 8. 



Outer margin of primaries crenulate Dendrolimus. 



Primaries with the outer margin angulated and excised .... Bhareita. 



8. Palpi long 9. 



Palpi short 10. 



9. Veins 6 and 7 of primaries from cell Arguda. 



Veins 6 and 7 stalked OdoJiestis. 



I o. Cell of both wings closed 11. 



Cell of primaries closed, of secondaries open 20. 



Cell of both wings open Trabala. 



1 1. Very large (80 to 1 10 mm.) ; primaries rather elongated. . Pachypasa. 

 Smaller, primaries trigonate ; veins 4 and 5 of secondaries from 



the cell 12. 



1 2. Female with large, thick, hairy anal tuft Eriogaster. 



Female without this tuft 13. 



13. Veins 9 and 10 of primaries on a stalk half way to apex or less. . . 14. 

 Veins 9, 10 on a stalk more than half way to apex of wing 18. 



14. Small species, wings short, 7, 8 of secondaries stalked from narrow 



and very small intercostal cell .17. 



