18 IOWA STUDIES IN NATURAL HISTORY 



8. Outer margin of secondaries slightly crenulate. .Codairactus 

 Outer margin even Telegonus 



9. Club of antennae large, fusiform Plestia 



Club more slender, with a distinct apiculus 10 



10. Apiculus much shorter than rest of club, bent at about a 



right angle 11 



Apiculus about as long as rest of club, usually sharply re- 

 flexed or recurved 13 



11. Secondaries lobed Polygonus 



Secondaries broadly rounded or merely produced at anal 

 angle 12 



12. $ with a tuft of scales on upper surface of hind wings; 



palpi moderate Cogia 



No tuft. Palpi exceeding front by about length of head 

 Phoedinus 



13. Vein la of secondaries about two-thirds as long as lb. Pri- 

 maries with a broad yellow band Cecropterus 



Vein la longer. Primaries with spots or a broken yellow 

 band 14 



14. Outer margin of secondaries broadly rounded; of primaries 



slightly and almost evenly convex Tlwryhes 



Outer margin of secondaries more or less produced and 



angled at lb; of primaries slightly sinuate Achalarus 



Outer margin of secondaries with a slight truncate lobei 

 betvi een veins 3 and 4 Cahares 



Genus PHOCIDES Hiibner 

 Phocides Hbn., Verz. bek. Schmett. 103, 1820. Type PapiUo 



palerrwn Cr. 

 Enjcides Hbn., Verz. bek. Schmett. 110, 1820. Type Papilio 



pygmalion Cr. 

 Dysenius Scudder, Syst. Rev. 46 (67), 1872. Type Erycides 



alhicilla H. S. 

 Palpi oblique, vestiture smooth, deep and scaly; third joint 

 small. Antennae with club rather long, moderately thick; api- 

 culus not more than one-half as long as rest of club, very slender 

 and abruptly bent. Primaries shaped as in Goniurus, with a 



