NOVTTATES ZOOLOaiCAE XXV. 1918. 



393 



b'". 



triangular in shape, then formed by long 

 hair scales. 

 a'2. Maxillary palpi three-jointed, fihform, 

 often curved, seldom minute or rudi- 

 mentary, 

 a". Hindwing lanceolate or linear ; forewing 

 with the upper margin of cell usually 

 obsolete on basal third ; vein 7 end- 

 ing on costa ; larvae with prolegs on 

 somites 7 to 9, not on 10 

 a". Hindwing trapezoidal-ovate or elon- 

 gate-ovate ; forewing with vein 7 

 ending on termen .... 

 bi2. Maxillary palpi not fihform, porrect. 

 a}'. Both wings with the ceU open, veins 3 

 to 5 absent ; maxillary palpi long, 

 folded ; head rough ; antennae with 

 eye-cap ..... 

 Cell not open in both wings ; veins 

 3 to 5 not all absent. 

 a'*. Forewing with the apex bent up or 

 downwards ; maxillary palpi usuaUy 

 long, folded ; antennae often with 

 eye-cap ; head usuaUy tufted above, 

 sometimes smooth . . , , 

 bi*. Forewing with the apex not bent up 

 or downwards, 

 a'^ Hindwing broader than the fore- 

 wing, trapezoidal, the apex 

 pointed, the termen strongly sinu- 

 ate, the tomus prominent, veins 

 5 to 7 nearly parallel ; forewing 

 with veins 7 to 8 stalked or co- 

 incident, ending on costa ; head 

 densely rough-haired above ; an- 

 tennae much longer than the fore- 

 wing, with basal pecten ; eyes 

 sometimes completely divided 

 longitudinally .... 

 W. Hindwing ovate-triangular, elon- 

 gate ovate, or lanceolate, rarely 

 trapezoidal 

 a". Antennae once to four times 

 length of forewing, usuaUy 

 much longer and rarely only 

 once the length ; hindwing with 

 veins 3 to 4 usually separate, 

 6 often stalked with veins 5 or7 ; 

 maxillary palpi five-jointed, 

 three-jointed, or rudimentary . 

 b". Antennae rarely longer than the 

 forewing, 

 a". Head usually rough ; maxillary 

 palpi often long, folded ; palpi 

 porrect or upturned, more or 

 less obtuse ; forewing with 

 vein 7 ending on the costa ; 

 hindwing with veins 2 to 4 



79. Eucestidae 

 80. Plutellidae 



83. Sligmellidae 



84. Lyoneliadae 



78. Amphitheridae 



86. Nemophoridae 



