NYMPHALID/E AC4RIAS AND SIDERONE. 



SIDERONE. 



SIDERONE SYNTYCHE. 4, 5. 



Upperside. Male. Anterior wing purple (the outer margin black), with a large 

 triangular spot of scarlet tinted with carmine extending from the base to the middle 

 of the wing, bounded on one side by the costal margin, on the other by the median 

 nervure and its first nervule ; the apex with two small spots of white. Posterior wing 

 dark brown, glossed with purple towards the outer margin; tailed at the anal angle ; 

 an oval crimson spot near the middle of the costal margin, and a line of light-blue 

 spots near the outer margin from the tail to beyond the middle of the wing. 



Underside richly varied with many shades of brown, red-brown, and grey. 

 Anterior wing with the base and apex red-brown ; the rest grey, crossed first a little 

 beyond the end of the cell by a line of brown; next by a band of brown from the 

 middle of the inner margin to the outer margin near the apex ; the outer margin near 

 the anal angle also brown ; the apex with several small white spots. Posterior wing 

 with the base red-brown, followed, first by a triangular transverse band of dark-brown, 

 next by a band of grey bounded by black and traversed by a line formed of purple 

 atoms; the apex marked by a large red-brown spot; the anal angle by a large semi- 

 circular spot of ashy-grey traversed by a black line on which there are three indis- 

 tinct spots of white ; the palpi and breast yellow ; the body red-brown ; the abdo- 

 minal fold grey. 



Expan. 3^0 in. Hab. Mexico. 



In the Collection of W. W. Saunders. 



This beautiful butterfly is probably the male of P. Marpesia of Cramer (PL 191), to which it 

 bears resemblance on the underside. I have never seen the insect figured by Cramer, and do not 

 know its sex. 



