PAPILIONID^. 3 



prominently marked as in P. Priamus ; the outer black margin is very narrow, and the anal angle is buffy 

 yellow with a black heart-shaped spot, while in P. Priamus this space is black with a small buffy yellow mark. 

 Female. PI. I. f. 2. — This sex agrees better with the figure given in the ' Voyage de 1' Astrolabe,' t. 4, than 

 with any figure that represents the female of P. Priamus ; but it differs from it by the marking in the discoidal 

 cell of the primary wings being more diffused towards the disco-cellular nervules ; the other white markings are 

 similar in position and form, but in some cases they are rather larger. The secondary wings are also hke the 

 above-mentioned figure ; the four large buffy white spots between the nervules retain somewhat of the tear- 

 shaped form, especially the two that occupy the two spaces between the second subcostal and the first median 

 nervules ; but none of the spots advance to the disco-cellular nervules, nor to the median nervure, nor is there 

 any white spot within the discoidal cell as is represented in that figure, though they possess the black spot in 

 the middle of each ; the anal angle is buffy white, showing the black spot that exists on the under surface ; and 

 at the anterior angle there are two buffy white spots. 



The under surface of the primary wings is like the upper ; but the mark in the discoidal cell is not so 

 diffused. The under surface of the secondary wings is also hke the upper side ; but the two spots at the anterior 

 angle and the outer portion of the space between the nervules are of a rich yellow ; and the space at the anal 

 angle is equally as prominent as the others. 



In Collection (Brit. Mus.) from Cape York, Northern Australia. Males and Female. 



The female given by Mr. Westwood as that of P. Poseidon must be considered the same as the one above- 

 described ; but it differs from the specimen contained in the collection that was brought with the males m 

 several particulars, viz. the marking in the discoidal cell of the primary wings is not diffused towards the disco- 

 cellular nervules ; and there is only a single spot between the second discoidal and the first median nervules ; 

 the two spots between the third median nervule and the submedian nervure are much less in size. 



The secondary wings have the white spots between the nervules more of a tear-shape, and the black spot m 

 the middle of each is rather larger and of a more decided black ; there is not any ochraceous spot represented 

 between the costal and the first subcostal nervule ; the black spot at the anal angle is placed at the inner part 

 of the white. 



It should also be observed that this figure is eight inches across from tip to tip of the primary wmgs, and 

 therefore three-quarters of an inch larger than the specimen represented on PI. I. f. 2. 



4. Papilio Archideus. 



Ornithoptera Priamus ?, Boisd. Voy. de V Astrolabe, t. 4. f. 1. 2. 



Ornithoptera Priamus, var. ?, Boisd. Sp. Gen. Lep. i. p. 174. 



Papilio (Ornithoptera) Archideus, G. B. Gr. 



This species agrees in many particulars with the female of P. Pronomus, but the white of the secondary wmgs 

 reaches to the disco-cellular nervules and a portion of the median nervure, and it also occupies a small space 

 within the discoidal cell, while the black spots between the nervules are of a larger size. 



Examples of the male from Celebes are at present unknown, which is much to be regretted, as an esamma- 

 tion of that sex would greatly assist in defining whether it ought to be considered a distmct species or not. It 

 is however placed as distinct, on account of the characters pointed out in the above short notice. 



5. Papilio Poseidon. 



Ornithoptera Poseidon, E. Douhl. Ann. Nat. Hist. xvi. p. 173. Id. Gen. ofB. Lep. p. 4. 3. 



Ornithopterus Poseidon, Westw. Cab. Or. Ent. pi. 1 1 S . 



This species differs from P. Pronomus by the rich green colour narrowly extendmg along both sides of the 

 median nervure, and partly or entirely along the course of the nervules of the primary wings towards the outer 

 marghi ; and there is not any black spot in the buffy yellow space at the anal angle beneath the secondary wmgs. 

 The markings beneath the primary wings, and almost the enthe surface beneath the secondary wmgs, are of a 



B 2 



