46 



3. georgica H.-Sch. Atlantic States to Rocky Mts. 



var, tortuosa Tepp. 



Gen. Nadata Walk 1855. 

 = II Alastor Bdv. 1869. 

 Type: N. gibbosa. 



4. gibbosa Abb. & Sm. Canada to Gulf; Rocky Mts. ; California 



var. doubledayi Pack, 

 var. rubripennis N. »fc D. 

 var. oregouensis Butl. 

 var. behrensii Hy. Ed. 



Gen. Hyparpax Hübu. 1824. 

 Type: H. aurora. 



5. aurora Abb. & Sm. Middle States to Gulf. 



rosea Walk. (Sangata). 

 venusta Walk. (Dryocampa). 



6. venus Neum. Colorado. 



7. peropboroides Streck. (Cosmia.) Florida. 



auro striata Graef. 



var. tyria Sloss. 



an $ aurora A. & S.? 



Gen. Syniraerista Hübn. 1818. ^ 



= Edema Walk. 1855. 



8. albifrons Abb. & Sm. Canada, southward. 



9. albicosta Hübn. Canada, southward. 



10. packardii Morr. Texas. 



Gen. Nerice Walk. 1855. 

 Type: N. bidentata. 



11. bidentata Walk. Eastern to Middle States. 



Gen. Cerara Schrank 1802. 

 = Andria Hübn. 1806. 

 = Harpyia Ochs. 1810. 

 = Pania Dalm. 1823. 

 = Dicranura Bdw. 1829. 



12. multiscripta Riley. Middle and Western States. 



13. scitiscripta Walk. Western and Southern States. 



Candida Lintn. 



14. occidentalis Lintn. Canada, southward. 



15. scolopendrina Bdv. Canada, southward. 



aquilonaris Lintn. 

 var. albicoma Streck. 



16. modesta Hudson. Eastern and Middle States. 



17. borealis (iucrin. Canada, soulliward. 



18. cinerea Walk. Canada to California. 



var. cinereoides Dyar. 

 var. i)la(;i(la Dyar. 

 var. nivea Neum. 



paradoxa Dyar. 



meridionalis Dyar. 



