364 XOVITATES ZOOLOOICAE XXV'I. I'Jl'J. 



very large round patch of white scales touching the cell, but rarely, if ever^ 

 invading it ; and on the hindwing a uniform series of red and rather small spots. 



Lysander Group. 

 P. aglaope (pi. ii. fig. 5, pi. iii. fig. 2). 



AVidespread and not realh' rare about Para, but of spasmodic occurrence, 

 the female being easily overlooked on account of its extreme likeness to the 

 much commoner lysander, unless caught and critically examined. 



Localities. JVIatto paths in Utinga, Souza, S. Joaquim, Sacramento, etc. 

 The larva has generally been discovered singly, feeding on Aristolochia longi- 

 caitdata, and occasionally on three of my newly discovered species, A. huheriana, 

 didyma, and mossii. 



Though a variety of the larva resembling lysander has been met with, it is 

 usually a much handsomer and more variegated creature, possessing a deep 

 jjurple colour and a uniform series of bright red tubercles. The oblique stripe 

 running from the dorsal tubercle on segment 8 to the base of segment 6 stands 

 out prominently in a rosj- cream colour, and is generally .supported by a series 

 of more or less connected spots of the same tint, suggesting a parallel stripe on 

 segment 9. In the lysaivierAike variety, however, these spots are absent, and 

 are only represented by an elongated light base to the dorsal tubercles on 

 segment 9. In this case also these tubercles are invariably dark, and light only 

 on segments 3, 8, 11, and 13. When red, they tend to be light on these .segments, 

 and to be deepest in colour on segments 6 and 10, especially at their bases. 



The medio-lateral tubercles on segments 3, 4, and 5 are dark, and the sub- 

 spiracular row generally ochreous with reddish tips. 



Butterfly characters : Forewing of male compared with lysander somewhat 

 fuller, the patch on the inner margin being of oblong rather than triangular form, 

 and of a delicate grey-blue colour with one or even two clear white spots in its 

 upper part. Hindwing with five or six brilliant red spots, shorter and rounder 

 than in lysander and more like those of its own female. Abdominal sheath lined 

 with short cream-coloured down and bordered with some fine greyish hair. 



Female ; White patch in centre of forewing generally smaller than lysander 

 and less often invading the cell ; hindwing simOar to that species with si.x or seven 

 bright red spots. Fringes pink, not only in the hindwing of both sexes, 

 but also on the undersurface of the forewing of the female, invariably marking 

 the lower half in three or four jjlaces, and constituting an outstanding feature of 

 difference between the two species in this sex. 



P. lysander (pi. ii. fig. 6). 



Always a common species about Para, the butterfly occurring in all parts 

 of the matto and on the islands, and the larva being very frequently taken on 

 the outskirts of the city in more open places, feeding on Aristolochia huheriana. 

 This larva is the dullest of either group, varying from a mottled vinous brown 

 to a pale ochreous grey. The oblique light side-stripe from segment 8 to 6 is 

 always pronounced, and while the dorsal tubercles in the main partake of the 

 general ground-colour, they are always light on segments 3, 8, 11, and 13. The 

 8ub-spiracular tubercles are also light on segments 2, 3, 4, 11, and 12, and the 

 small poiats above the claspers are sometimes light. 



