EXPLANATION OF PLATE XX. 



1. Venation of Lithocolletis hageni. 



2. " " " lucidicosteUa. 



3. " " " robinieUa. 



4. " " " hamadryadella. 



5. " " " conglomeratella. 



6. " " Cremastobombycia solidaginis. 



7. " " " ignota. 



8. " " Porphyrosela desmodiella. 



9. Head of Lithocolletis lucidicosteUa. 



10. Flat larva, L. agrifoliella. 



11. Cylindrical larva, L. lucidicosteUa. 



12. Mine and cocoon of L. conglomeratella. 



13. " " " C. solidaginis. 



