148 Bulletin American Museum of Natural History [Vol. XLIII 



(125) 3a. Precis stygia stygia Aurivillius (typical) 



Plate VII, Figure 3, 9 



Accepting the figure given by Aurivillius in Seitz, XIII, PI. vii/>, as 

 adequately representing the species, and comparing it with his descrip- 

 tion of the same, it is plain that this form is characterized by the pre- 

 sence of light areas on the under side of the wing, particularly at the 

 apex and outer margin of the primaries and around the outer border of 

 the secondaries. It is also larger in size than the other two forms, though 

 this difference is not so marked in some specimens of P. stygia gregorii, 

 many of which approximate P. stygia stygia in size. 



This is no doubt a dry-season form. Niangara, Medje, and Munie 

 Katoto. 



(126) 36. Precis stygia gregorii (Butler) 



Plate VII, Figure 4, c? 

 Precis gregorii Butler, 189.5, Proc. Zo' .1. Soc. London, p. 726, PI. xlii, figs. 7, 8. 



This form may or may not be marked at the apex of the fore wing 

 and on the outer margin of both wings with the light maculation which 

 characterizes typical P. stygia, but it is invariably discriminated from 

 the former and from the third form by the presence in the male of at 

 least one brilliantly white or very light yellow spot on the costa of the 

 secondaries on the lower side, which spot is exactly at the termination 

 of the dark band which in all the three forms runs from the anal angle to 

 about the outer fourth of the upper margin of the wing. In the females 

 this same spot also occurs, but it is frequently accompanied by one or 

 more similar spots on the interspaces lower down on the wing, which 

 spots usually are situated either in the middle of the dark medial band, 

 or slightly l)eyond it toward the outer border. 



This is probably, like the preceding, a dry-season form. Niangara 

 and Medje. 



(127) 3c. Precis stygia fuscata, new variet}'' 



Plate VII, Figure 5, cf 

 This form, which is by far the commonest of the three, is, on the average, appreci- 

 ably smaller in expanse of wing than the two preceding, lacks almost altogether any 

 light cloudings or spots or marks on the under side of the wings, the onty traces of such 

 being the almost microscopic dots which indicate the location of the vanished ocelli, 

 which are more or less visible on the outer third of the wings of P. stygia stygia and 

 P. stygia gregorii. The prevalent color of the lower side of the wings is brown marked 

 with darker brown or black spots, the most prominent of all these being the transverse 

 band on the secondaries. 



This is the wet-season form and is the commonest one on the western 

 coast. The type locality is Medje; also at Munie Katoto. 



