LEPIDOPTERA 587 



or present, but when present arising either 

 midway between radius and cubitus, or nearer 

 to radius than to cubitus; vein M, of the hind 

 wing joined to radius at or beyond the apex 

 of the discal cell. 



Q. Tongue (maxillae) wanting; fore wings 

 with Rj + 3 and R4 + s stalked together,north- 

 ern species with hyaline dots on fore wings. 



p. 707 EuPTEROTIDyE 



QQ. Tongue present, often weak; fore wings 

 fully scaled; usually with accessory cell, or 

 with veins Rj and R4 stalked together. 



p. 674 NOTODONTID^ 



00. The basal part of the subcosta of the hind 

 wings joined to radius for a short distance and 

 then making a prominent bend towards the 

 costal margin (Fig. 909). (See also OOO.) 

 P. Veins R3 and R4 of the fore wings widely 

 separated from each other, stalked respec- 

 tively with R2 and R5. p. 712 



LACOSOMIDiE 



PP. Veins R3 and R^ long-stalked with each 

 other, widely separated from Rs which is 



stalked with Mj. p. 708 Epiplemid^ 



000. _ The basal part of the subcosta of the hind 

 wings making a prominent bend into the 

 humeral area of the wing, and usually con- 

 nected to the humeral angle by a strong cross- 

 vein (Fig. 817). 



P. Antennae clubbed. p. 673 Manidiid^ 



PP. Antennas not clubbed, p. 663 



• • • ■ Geometrid^ 



NN. Vein M2 of the fore wings more closely joined 

 to cubitus than to radius; cubitus being in most 

 cases apparently four-branched. 

 O. _ Small moths, with the apex of the fore wings 



sickle-shaped, p. 710 Drepanid^ 



00. Apex of the fore wings not sickle-shaped. 

 P. Vein So of the hind wings apparently ab- 

 sent, being fused except at the extreme base 

 with radius. Care should be taken not to 

 mistake vein Mi for radius (see Fig. 897). 



P- 706 EUCHROMIID^ 



PP. Veins Sc and R of the hind wings distinct 

 and parallel to the point where vein R sepa- 

 rates from the discal cell, and then approach- 

 ing very close or fusing for a short distance. (See 

 also PPP.) 

 Q. Small moths with snow-white wings 



(Eudeilinia). p. 710 DrepaniD/E 



QQ. Moths that are not white. 



R. Vein R5 of the fore wings stalked with 

 veins R3 and R4 (Chrysauginse). p. 644. 



Pyralidid^ 



RR. Vein Rj free (Meskea). p. 653 



Thyridid^ 



PPP. Vems Sc and R of the hind wings not as 

 described under PP above. 



Q. Antennae more or less thickened towards 

 the tip. p. 697 Agaristid^ 



