26 JoL'RXAL New York Entomological Society, t^'o'- xxii. 



Male anteniwe serrate and fasciculate, upper spinules wanting, wing form as in 

 the second group. 

 Palpi clavate with dense vestiture and short third joint hair of vestiture 



forked fishii. 



Vestiture of simple hair, bristling on palpus, which has a longish third 



joint cinerea. 



Male antenna simple, ciliate, tarsi with upper row of spinules. 



Vestiture of simple hair zvockei. 



Vestiture of forked hair rnvaf, juncta. 



Eurois. 



Hind metatarsus at least, with a sparse row of upper spines. 

 Abdomen cylindrical, body strongly tufted {Eurois) prasiua. 

 Abdomen very strongly flattened, vestiture smooth. 



(Tripha-na) fimbria, exotic. 

 Hind metatarsus usually with the three rows of spines on the under side only, 

 rarely {e. g., stcllaris) with one or two subdorsal spines. 

 Fore tibise slightly spined {Aplectoides, Platagrotis). 



Vestiture of inner half of patagia much coarser, fore wing more tri- 

 angular, approaching typical Eurois prcssa. " 



Vestiture even, smooth, largely hairy, wings rectangular, with nor- 

 mally arched costa imperita, condita, speciosa. 



Fore tibiae unarmed. 



Male antennae bipectinate (Scmiopltora, Matuta). 



Antennae broadly pectinate, front concolorous. 



Vestiture mostly hairy, thorax very stout, palpi beak-like, 

 fore wing with rectangular apex and outer edge straight 



to Cui ienebrifera. - 



Vestiture mixed group elitnata. * 



Antennae of male narrowly pectinated, front black . . . opacifrons. 

 Male antennae simple. 



Slender, with strongly arched costa and marked apex of fore 

 wings ; antennae slightly serrate. 



Female wings reduced {Aiwtnogyna) Urtabilis. 



Female wings normal sincera. 



Abdomen more or less, usually strongly, flattened, with lateral 

 fringes of hair ; antennae usually wholly simple, fore wing 

 with straight costa and usually blunt apex. 

 Vestiture of second joint of palpus loose. 



Wings short, abdomen little flattened, hind wings yellow, 



gilripcnnis. 

 Fore wings long, abdomen strongly flattened, 



brunneicollis, rufipectus. 

 Second joint of palpi clavate, third joint often porrect and 

 beak-like. 



