THE CANADIAN ENTOMOLOGIST. 



191 



Sir George Hampson deals with these species in the third volume of 

 his work on the moths of the world as represented in the British Museum, 

 but uses a different arrangement from either of those used or suggested by 

 Dr. Dyar, dividing them among the three genera, Ammalo,\Valk.; Pygarctia, 

 Grote, and Eucha?tes, Harris, which he characterizes according to the fol- 

 lowing table : 



GENERA AS USED AND DEFINED BY SIR GEORGE F. HAMPSON, BART. 



Ammalo, Walk. 



Poboscis fully devel- 

 oped. 



Palpi upturned, n o t 

 reaching vertex o f 

 head, the third joint 

 short. 



Antennae of male bipec- 

 tinate,with rather long 

 branches, of female 

 with short branches. 



Tibiae with spurs moder- 

 ate. 



Abdomen d o r s a 1 1 y 

 clothed with rough 

 hair at base. 



Fore wing with veins 

 3, 4 , 5 from angle of 

 cell ; 6 from upper I 

 angle; 7, 8, 9, 10' 

 stalked ; 1 1 free. 



Hind wing with vein 3 

 from close to angle of 

 cell ; 4, 5 from angle; 

 6, 7 from upper angle; 

 8 from beyond middle 

 of cell. 



Pygarctia, Grote. 



Proboscis aborted, min- 

 ute. 



Palpi porrect, extending 

 to just beyond frons. 



Antenme of male bipec- 

 tinate, with the 

 branches short. 



Tibiae with spurs short, 

 fore tibiae with curved 

 apical claw. 



Abdomen smoothly 

 scaled. 



Fore wing with vein 3 

 from close to angle of 

 cell ; 4, 5 from angle; 

 6 from upper angle ; 

 7, 8, 9 stalked; 10, 

 1 1 from cell. 



Hind wing with veins 3. 



4 from angle of cell ; 



5 from just above 

 angle; 6, 7 from up- 

 per angle ; 8 from 

 towards end of cell. 



Euchaetes, Harris. 



Proboscis aborted, min- 

 ute. 



Palpi porrect to just be- 

 yond the frons. 



Antenme bipectinate, 

 with moderate 

 branches in male, 

 with v e r y short 

 branches in female. 



Tibise with spurs mod- 

 erate. 



Fore wing with vein 3 

 from close to angle of 

 cell; 4,5 from angle; 6 

 from upper angle 7,8, 

 9 stalked; 10, 1 1 from 

 cell. 



Hind wing with veins 3, 

 4, 5 from angle of 

 cell; 6, 7 from upper 

 angle ; 8 from be- 

 yond middle of cell. 



