22 AUSTRALIAN LEPIDOPTERA 



antenna) black. Beneath, dark bronze-brown replaces the black of upper surface, and the cerulean-blue of the band pales into a 

 silvery pearly tint, divided by yellow nervules ; the crescentic spots near the nuirgin of lower wing are also silvery, and tinged with 

 yellow at the anal angle; above these and near the discoidal cell are several wavy light crimson bars, and another short crimson 

 bar with green above, near the base of the wing ;* abdomen banded longitudinally with dark ])ro\vu and yellowish-grey ; legs and 

 front of head pale greenish-grey. 



Illustrations are given of side and back of caterpillar, chrysalis, and upper and under surface of butterfly ; and its indigenous 

 food plant Geijera salicifolia. 



PAPILIO LYCAON, Westhood.— (Plate XVII., ? ). 

 Papilio lycaon, Westwood, Arcana Eiit,, II., p. 15 (1843) ; Feldcr, Ileise Novara, Lep., I., p. 68 (1805). 

 Papilio eurypylus, Scott, MS. 

 LiFE-msTORY : Alathew, Trans. Ent. Soc. Lond., 1888, p. 177. 



We have invariably found the caterpillars of this Papilio feeding on the Custard Apple (Anona cheremolia), both in the suburbs 

 of Sydney, and at the Hunter Eiver ; and from the trees of this fine tropical fruit growing in the Sydney Botanic Gardens, and at 

 Elizabeth Bay — the residence of the late Mr. W. Sharpe Macleay — we have for .many successive seasons procured broods of the larvjs, 

 and have carefully watched their development from the earliest stage, when the body is dark blackish-brown above, white beneath, 

 and armed with many small spines, up through the various changes of skin to the final one, when the colour throughout is 

 usually dark olive-green above, whitish beneath ; the head shining i)ale yellow, and six small black and white spines placed in 

 pairs on the first, third, and caudal segment. During the intermediate changes of skin the larvjE vary considerably in colour, 

 some being rich black or dark chocolate-brown, some bright brick-red, others again green ; they have also an additional pair of 

 small spines on the second segment, which afterwards disappear. When quite mature the larva measures about IJ inch, is 

 cylindrical and thickest at the shoulders, thence attenuating to the extremities ; sluggish in habit, and possesses the retractile 

 tentacula. 



The larva; we collected near the end of January, changed to chrysalids early in March, and produced butterflies towards 

 the end of the same mouth ; but those procured in March did not take wing until the following summer. 



The chrysalis is attached by the tail and a median band, with the head iipwards ; in length 1 inch ; pale emerald green 

 throughout, finely spotted with darker green ; the thorax angular in front, with four slightly raised divergent lines proceeding 

 down the sides of abdomen and uniting at the tail. 



The butterfly measures about 3^ inches, but we have seen many specimens much smaller. 



The Antennce (figs. 1 and 2) terminate gradually in a club, comijressed and slightly grooved near the apex. 



The Labial palpi (fig. 3) small, projecting very little beyond the eye ; thinly covered above with scales, and beneath with 



longish hairs ; basal and second joints nearly equal in length ; terminal small, globuLi 



ar. 



The Leys: slender, very sparingly clothed with scales, but with rows of small setic on all the joints (fig. 4, anterior 



leg) ; intermediate and posterior pairs with two small spurs at apices of tibia). 



Wings erect in repose. 



The upi)er surface is silky jet-black. A broad transverse band of very pale greenish-blue passes through the centre of both 

 wmgs, and is disconnected by the nervules and broken up into patches towards the tip of upper wing, where also several short 

 transverse bars of the same delicate bluish-green occupy the discoidal cell ; a row of similarly coloured spots encircles the outer 



*[In some specimens these bar.s^arc deep orange-yellow. H.F.I 



