Explanation of Plate IV. 



1. Crambus biothanatalis. 



2. Crambus caliginosellus. 



3. Crambus caliginosellus. 



4. Crambus zeellus. 



5. Crambus luteolellus. 



6. Crambus luteolellus ulee. 



7. Crambus laciniellus. 



8. Crambus elegans, 



9. Thaumatopsis pectinifer. 



10. Thaumatopsis striatellus. 



11. Thaumatopsis magniflcus. 



12. Thaumatopsis edonis. 



13. Crambus dimidiatellus. 



14. Thaumatopsis pexellus. 



15. Thaumatopsis repandus. 



