NOVITATES ZOOLOOICAE XXVI. 1919. 315 



has tails (until they get broken off), and its male is always yellow and black, 

 and so different to its own partner, that no one in advance would ever think 

 of associating them together as one species. 



The egg is small, greenish yellow, and deposited singly. 



The young larva, unlike anchisiades, has prominent tubercles, and in its 

 general colour and design bears points of resemblance to thoas. It is, howevcv, 

 possessed of a sufficient number of individual features to make discrimination 

 certain at first glance. Even till later m life its arrangement of well-developed 

 dorsal tubercles makes it very distinct from other species, as will be gauged by 

 a comparison of the figures on Plate II. Like the others, it is glossy in surface 

 until the last instar. 



The pupa, like anchisiades, is of a pale greenish-grey colour, but more 

 slenderly constructed and the anterior projections better developed. 



DI\^SION III.— KITE PAPILIOS. 



This third and last great Division of the Papilios is, strange to say, but 

 poorly represented in Para, only one of the true Kites, a subspecies of protesilaus, 

 occurring here, and that with such rarity as to make one dubious about its 

 origin. 



Seeing that jjrotesilaus and its long- tailed allies are many of them extremely 

 common in different parts of the Amazon region at no great distance, I incline 

 to the view that the mere handful of the species named, which have been taken 

 in Para, are stray immigrants, born and bred elsewhere over the river. 



The interest attaching to the Division is, however, sustained and even 

 heightened by the consideration that Para does, at any rate, possess two other 

 representatives in pausanias and ariarathes, butterflies which on first sight 

 appear so heterogeneous as to have entirely lost their bearings. 



Lysithous Group. 

 P. pausanias pausanias. 



Unfortunately I have here nothing to record up to date beyond the capture 

 of a single specimen of the butterfly, taken flying with various Heliconii near 

 the chief water-tank in Utinga. Of a sheeny blue-black with patches of lemon 

 on its rounded forewing, it resembles no other Papilio that I know, least of all 

 the Kites, but becomes, probably for some very good reasbn, the most striking 

 mimic of a Hdiconius. 



This strange resemblance gains emphasis not only from its form and colour 

 but from the fact that its field of flight is so largely tenanted by several Heliconii 

 of this particular form and colour ; the assumed reason for it aU being, of course 

 that these briUiant but lazily flying butterflies fear nothing on account of their 

 acknowledged distastefulness to the predatory foes of then- kind. It is averred 

 that birds do not often eat butterflies, but except on those rare occasions when 

 one has been privileged to witness the phenomenon, I imagme that the contention 

 is just about as difficult to prove as to disprove. In any case, it cannot be 

 denied that reptiles, like snakes and lizards, include these winged creatures 

 in their bill of fare ; and I recall the instance, some years ago in Peru, of a green 



