340 LEPIDOPTERA OF NORTH AMERICA. 



10. A. dione ffilbn. Fab., Sm. Abb. Arge Drury. Figured in Drury, 



I, pi. 18 ; Sm. Abb. pi. 63 ; Naturalist's Library, vol. 36, pi. 19. 



Ground color of primaries and thorax cream-color, sometimes 

 delicate pink ; surface variegated with numerous black lines and 

 angular spots. Secondaries cream-color or tinged with red, with 

 a fulvous marginal line and many oblong black spots behind. 

 Antennae black at the extremities ; neck red, with two small black 

 streaks above it ; thorax with a black stripe in the centre and 

 another on each side; abdomen with three rows of black spots, 

 those along the back being largest. Anterior femurs red, with 

 two black spots close to the head. 



Var. a. Primaries reddish-white, with cuneiform black spots. 

 Secondaries red, with black yellow bordered spots. 



Var. b. Spots of the primaries much larger and forming a 

 stripe toward the hind border. 



Var. c. Spots of the primaries still larger and more inclined to 

 form stripes. Spots of the secondaries without yellow borders. 



Var. d. Secondaries whitish, spots small and without yellow 

 borders. 



Larva dark brown, with five pale or yellow longitudinal stripes, 



each segment bearing a transverse row of fulvous tubercles, from 



which spring a dense tuft of brown hairs. 



United States. 



Nat. Library. 



11. A. hyperborea Curtis. C. B. M. 611. 



Fuscous ; primaries with a costal spot and posterior vitta inter- 

 rupted with rust-red; secondaries fuscous, with a band uuimacu- 

 late and margin ochry. 



Arctic America. 



Walker. 



12. A. isabella Hiibn. Figured in Sm. Abb. II, pi. 68. 



Antennas filiform, tawny-yellow. Thorax tawny and brownish. 



Abdomen tawny, deeper color beneath ; three rows of black spots, 



six or seven in each row. Primaries tawny, with a few black 



scattering spots. Secondaries nearly transparent, slightly tawny, 



with six spots ; legs black or dark brown. 



United States. 



Sm. Abbot. 



