14 BULLETIN 48, UNITED STATES NATIONAL MUSEUM. 



\. Palpi straight or oblique, with upright scaly vestituro, this transversely 



compressed ; anterior legs of male entirely normal Hypemni, 14, 



2. Male anteunsw ciliated, without special modifications; jjrimaries ^Ylth obtuse 



apices and rounded outer margin Epizkuxis (p. 15) 



3. Ualpi slender, smoothly scaled, upcurved along the front; sickle-shaped 4. 



I'alpi transversely compressed, straight or obliijue; never applied to the 



front; clothed with upright scales, giving it ii ragged blade-like 

 appearance S 



4. Male antenna' with two or three, joints at basal third furuislied with pointed 



corneous processes covered by scales 5. 



ISIalc antenna' with a pointed tuft of hair at basal third, Tmt no special 



processes (1 



Male antenna- ciliated, simply 7 



5. Male antenna' laterally bristled ZANtLOcxATHA (p 27) 



Male antenna', bipectinated Hormisa (p. 4.")). 



(J. Male antennat bristled; primaries obtuse, trigonate Tetaxolita (p. 61). 



7. Primaries narrow, with acute apex and obluiuc outer margin .Bleptina (p 57). 



8. Primaries with the accessory cell present 9. 



Primaries without accessory cell 12. 



9. Primaries angulated, the middle ot outer margin produced, cxcavatedbelow 



apex It. 



Primaries not angulated 10. 



10. Antennae of the male lengthily l)ipcctinated, without'special modilicatiou at 



basal third. PuiLdMKTHA (j). .">0). 



Antenna' of male laterally bristled, with a nodosity covering two or three 



corneous processes at basal third Chytulij a ( p. ."> 1 ). 



Antenna; of male ciliated, without special modiiications Hyj-emla (p. 7(i). 



11. Male antennie coarsely pectinated Derckti.s (p. 82) 



12. Primaries not angulated, apex distinct or rectangular; male antenujc with 



a ])onited tult of hair at basal tliird, covering a bend and linger-like 

 process Renia (p 65). 



Primaries with the outer margin jn-oduced at middle, angulated; usually a 



little excavated lielow apex; male antenna' bristled Ill 



lo. Primaries broad, entire in both sexes; palpi normal HEiiciiOGUA.M.MA (p. 78). 



Primaries broad; in the male cleft or split from the middle of the outer 



margin nearly one-third inward Gai5E1!a.s.\ (p. 80) 



Primaries narrow, i)ointed, entire; palpi of male with a membrauons append- 

 age furni.'^hed with a long iiencil of hair..., Palthis (p 84). 



14. Primaries with apices obtuse, outer margin rcuiiidcd Cams (p ?'8). 



Primaries broad, trigonate, apices maikcd, outer margin oblicjue and 

 rounded, with a variably marked though always slight angulation at 

 middle BOMOLoniA (j). 91 >. 



Primaries broad, trigonate, with lengthily ]>roiluced apices and \cr\ ob- 

 liijUfdy rounded outer margin; ]Kiljii ^•c^y long and straight. 



LoMANALTES (p. 109V 



Primaries narrower, with acute apices and (>bli(|ue outer margin ;'pal])i sliort, 



oblicjue, forming a pointed snout Sai.ia (p 89). 



Primaries narrow, secondaries very broad. 



Inner margin of primaries sinuate, inner ;iugle ])roduced, prominent 



Pl.ATIlYPENA (p. 110). 



Inner margin of 2)rimaries e\en, inner angle rouniled Hypena (p. 112). 



