N0V^TATE3 ZOOLOGICAE XXVI. 1919. 301 



By way of completing the description of this type of larva, let it be noted 

 that, in addition to the dorsal tubercles, of which there are a pair on each 

 segment after the second, another set, generally long and dark in colour, are 

 situated about the middle of the sides of segments 3, 4, and 5. 



There are also a couple of rows of short, thick, sub-spiracular tubercles, 

 beginning on segment 2 behind the head, and terminating on segment 13 with 

 what can only be described as a pair of light spots. The tubercles of the upper 

 row, though variable in size and colour, are always more prominent than those 

 beneath, and are generally largest and lightest on segments 2, 7, 11, and 12. 

 Those just above the legs and claspers are mere red or maroon points, conspicuous 

 only so far as they differ from the prevaUing ground-colour. 



The extreme similarity of the pupae, of which sesostris alone is figured (Plate 

 m, fig. 7), has already been mentioned, and still further emphasises the close 

 alliance of all these species to one another. 



In the butterflies, the Aeneas group possesses touches of white in the black 

 fringe between the veins especially of the hindwings, anchises and verlumnus 

 showing this characteristic strongly also in the forewings of bcjth sexes. In 

 the Lysander group all four species are similarly adorned with pink in the fringes 

 of the hindwing, while the female of aglaope possesses minute touches of the same 

 colour in the black fringes of her forewings, visible only on the undersurface. 



All the eight butterflies are black, inclining somewhat to brown in the 

 females of sesostris and anchises, and to blue-black in the male of anchises, the 

 male of neophilus being thinly scaled and semi-transparent between the cell and 

 apex of the forewing. The forewings of the males are in all cases adorned with 

 a patch of blue or green, and of the females with white, the precise position, 

 shape, and colour of these marks being sufficiently distinct in almost every case 

 to preclude any doubt as to the identity of the species. Similarly, on the hind- 

 wings the adornment of red spots, ever different in the two sexes and varying 

 in tone of colour, form, and exact position with each species, is a sufficiently 

 pronounced and constant feature, in conjunction with the fringe, to make 

 identification certain in every case. 



P. aeneas marcins (pi. ii. fig. 1, pi. iii. fig. 6). 



A comparatively rare species in Para, but evidently widespread. 



Localities. Utinga, Murutucu, S. Joaquim, llha das Ongas, etc. 



Larvae on isolated plants of Aristolochia burchelli growing in heavy shade 

 of matto. Females sometimes caught on the sunny paths, males more often 

 n shaded and wet regions. 



Egg with eight regular vertical ribs. 



Captured female in muslin net, sleeved on the growing plant, will sometimes 

 lay, but only sparingly, generally dying after feeding and battering her wings 

 ior three days, and retaining many healthy ova. From one thus reared the 

 life-cycle was as foUows : 



Egg deposited afternoon of Sejitember 29th, 1915; hatched October 5th. 

 First ecdysis October 11th, second on the 16th, third on the 22nd, fourth on the 

 29th, spun up on November 9th, pupated on the llth, emerged a perfect male 

 on the morning of November 28th, being 60 days in all. 



Full-grown larva much like aglaope, but with light oblique stripe more 

 20 



