198 W. H. Edwards on certain N. A. species of Sati/rus. 



ocelli on the fore-wings are similar to those of Alope $ , and are usual- 

 ly surrounded by a yellow ring, but sometimes, in Eastern specimens, 

 by a nimbus, as described in the male. 



In the Catskills, T took two pairs of Nephele in coitti. In both 

 cases the males were dark. In one of the females there is a yellowish 

 nimbus shaped like the figure 8. 



In two other cases, and the most extreme out of 135 specimens taken 

 by me, the nimbus above has developed into a band more like that of 

 Alope, but narrower, while on the under surface of each the yellow 

 space keeps the shape of a double ring, figure or 8, and is by no means 

 a band. 



Out of 42 specimens of Nephele % now before me, each one has one 

 small ocellus on the hind wing above; in one instance there are two, 

 and in three instances there are three. 



In 12 Alope % , 5 have an ocellus on the hind wing above, 7 have 

 none. 



Of 42 Nephele 9 , 23 have one such ocellus, 19 have none. 



Of 12 Alope 9 , 5 have one such ocellus. 7 have none. 



On the under side of hind wings of 42 Nephele % , 33 or more than 



1 have G ocelli, 4 have 5, 1 has 4, 2 have 3, 1 has 1, 1 has 0. 



Of 12 Alope % , 4 only have 6 ocelli on the under side of hind wings, 



2 have 5, 4 have 1, 2 have 0. 



Of 42 Nephele $ , 6 have 6 ocelli, 2 have 4, 12 have 3, 5 have 2, 8 

 8 have 1, 9 have 0. 



Of 12 Alope 9 , 3 have 6 ocelli, 4 have 2, 1 has 4, 4 have 0. 



Therefore, in the number and constancy of the ocelli in the hind 

 wings above and below, the females of the two species are not very dif- 

 ferent, but the males differ materially. And the most evident distinc- 

 tion between the species is to be found in this difference in the num- 

 ber of ocelli of the males, and in the size, color, and presence or ab- 

 sence of the yellow band in both sexes. 



Nephele % varies much more than Alope % , but by no means so 

 much as Nphele 9 , which varies remarkably. In looking over a 

 large number of the latter, it is difficult to find two alike. Some- 

 times the ocelli of the fore-wings are round, sometimes oval, or 

 round with a prominence on one side. They are nearer or farther 

 apart, larger or smaller, differing on the same wing, either ocellus 

 lieing the larger. Some have a white spot in the centre, with or 

 without a blue shadow, some have one spot, and occasionally there are 

 two spots with a double shadow. The ocelli are surrounded by clear 



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