2 GO PROCEEDINGS OF THE NATIONAL MUSEUM. vol.50. 



1. Veins 7 and 8 stalked Scutirodes Schaus 



Veins 8 and 9 stalked 25 



Veins 9 and 10 stalked Hypoechana Druce. 



Veins 7, 8, and 9 stalked 4 



Veins 8 and 10 stalked, 9 absent Ilypenodes Guenee. 



Veins 8, 9, and 10 stalked 1 



Veins 7 to 10 stalked 34 



2. Vein 11 anastomosing with 12 Ditrogoptcra Ilampson. 



Vein 11 free 3 



3. Apex of forewings acute Margiza Schaus. 



Apex of forewings rounded Mclanomma Grote. 



4. Forewings of male with cleft on outer margin 5 



Forewings of male without cleft 7 



5. Palpi long, reaching middle of thorax Blcpliphora Schaus. 



Palpi not reaching middle of thorax 6 



6. Costa of male with tufts Tortricodcs Guenee. 



Costa of male without tufts Lascoria Walker. 



7. Veins 10 and 11 stalked Prorivula Guenee. 



Vein 11 free 8 



8. Palpi ui)curved 9 



Palpi obliquely ascending 12 



Palpi porrect 14 



9. Palpi half the length of the wing Ilyphypena Warren. 



Palpi less than half the length of the wing 10 



10. Third joint of palpi with small tuft Apustis Schaus. 



Third joint of palpi turned back, with long hairs Girtcsma Schaus. 



Third joint of palpi smooth 11 



11. Outer margin of forewings deeply outcurved Maronia Schaus. 



Outer margin of forewings slightly sinuous TrachysmaLis Schaus. 



12. Palpi long Compscnia Schaus. 



Palpi short 13 



13. Apex of forewings not produced Rivula Guenee. 



Apex of forewings produced Rhazunda AValker. 



14. Palpi long Macristis Schaus. 



Palpi short Euchronialia Schaus. 



15. Inner margin of forewing with tuft beyond middle Arrade Walker. 



Inner margin of forewing without tuft 16 



16. Antennae of male with tuft 17 



Antennae pectinate 23 



Antennae ciliate 24 



17. Forewings with cleft on outer margin 18 



Forewings without cleft on outer margin 19 



18. Tuft of antennae toward base Parairoma Dognin. 



Tuft of antennae toward tip Otaces Druce. 



19. A fold of upturned hairs on costa below Alogonia Schaus. 



A fold of downturned hairs on costa above 20 



Under side of forewings with raised scales or tuft 21 



Under side without raised scales or tufts 22 



20. A ridge of upturned hairs on median vein above Diplodira Schaus. 



No ridge of hairs on median Thcollnus Druce. 



21. Cell short Lophoditta Moschler. 



Cell long Physulodcs "Warren. 



22. Palpi upcurved Thursania Schaus. 



Palpi porrect, obliquely ascending Pseudarista Schaus. 



