396 



NOVITATES ZOOLOOIOAE XXV. 1918. 



Forewing with SC from the cell or from the stalk of SC'~°, in the latter case 

 nearly alwaj's before SC (in the American Aganaids, SC arises before SC*), 

 R* froiu quite near R' to rather near R' (see above), M' free or stalked with 

 R'. Hindu-ing with M' free or stalked with R'. 



All the species are Neotropical, with the exception of the Californian 

 Phryganidia californica. 



Tlie following is a tentative key to the genera which I have adopted. 



1. Forewing with SC from cell .... 

 Forewing with SC stalked .... 



2. Forewing with M' separate .... 

 Forewing with M' stalked .... 



3. Hindwing with M' remote from R' ; S antenna pec 



tinate ........ 



Hindwing with M' connate or stalked * ; o antenna 

 ciliate ........ 



4. Forewing with SC arising beyond SC 

 Forewing with SC arising before SC 



5. Forewing with M' sejjarate .... 

 Forewing with M' stalked .... 



6. Forewing with SC arising before SC 

 Forewing with SC arising beyond SC f • 



7. Cells short ; wings thickly scaled 

 Cells one-half or more ; wings thinly scaled 



8. Wings diaphanous ; forewing with M much before middle 

 Wings not diaphanous ; forewing with M normally 



placed ......... 



9. Hindwing with costa strongly arched ; S hindwing 



tufted ......... 



Hindwing with costa not strongly arched ; <J hindwing 



not tufted ........ 



Forewing with M' separate % . 



Forewing with M' stalked §..... 



Wings diaphanous or subdiaphanous || ; hindwing with 



M' remote ........ 



Wings opaque ; hindwing with M' approximated or 



stalked ........ 



12. Forewing with M' remote . . . . . 

 Forewing with M' almost connate . . . . 



13. Wings elongate, generally hyaline . . . . 

 Wings broad, not hyaline . . . . . 



14. Palpus long ; wings very narrow . . . . 

 Palpus moderate to shortish ; wings moderate . 



15. Cells rather short; DC strongly oblique . 



Cells long ; DC normal ...... 



10 



11 



2 



4 

 3 



3. Dolophrosyne 



1. Phaecchlaena 



2. Myonia 

 6 

 6 



34. Anticorevui 



35. Polyptychia 



7 



9 

 10. Psendoricia 



8 

 20. Tanaostyla 



9. Xenomigia 



32. Sagaris 



10 



n 



18 



12 



14 

 13 



19. Authyala 



18. Phanoptis 



4. Tolimicola 



15 



16 



11. Zunacclha 



7. Oricia 



* Separate, though approximated, in a few species. 



t Occasionally together or almost together in Polypoetes and Momonipta. 



X In Zunacetha usually connate ; in Authyala almost connate, 



§ Just separate in $9 of Scotura Sect. I, and of BrachygUne caenea. 



II Only opaque in Phanoptis fatidica Dogn. 



