EXPLANATION OF PLATE XX. 



1. Venation of Lithocolletis hageni. 



2. " " " lucidicostetta. 



3. " " " robiniella. 



4. " hamadryadella. 



5. " " conglomeratella. 



6. " " Cremastobombycia solidaginis. 



7. " " ignota. 



8. " " Porphyrosela desmodiella. 



9. Head of Lithocolletis lucidicostetta. 



10. Flat larva, L. agrifoliella. 



11. Cylindrical larva, L, lucidicostella. 



12. Mine and cocoon of L. conglomeratella. 



13. " " " C. solidaginis. 



