c?. The wliite area of the hindwiiigs, on the iipperside, enters tlie cell or not; 

 it consists of seven clearly marked spots, while in P. (unbrax there are mostly only 

 six, the posterior one being absent, or at least obsolete. Most specimens have two 

 red marks in the anal region ; sometimes there is also a red discal mark in front of 

 the lower median nervule. On the underside the number of the discal white spots 

 ("corresponding to those of P. polytes L.) varies from six to two ; in the latter case 

 the spots are ill defined, and there may occur specimens which have no white sjwts 

 at all; the submarginal rrd markings vary from seven to four; some specimens have 

 iiu additional, discal, red s[)ot as on tlie upperside ; very often there are, in both 

 sexes, discal rays of blue scales; a few blue scales are always met with, whereas in 

 P. ariibrr.cx they are entirely wanting, as in the Moluccan races of P. polyles L. 



?. The forewings resemble sometimes those of P. ambraxeqipius'Slisk. in being 

 almost pure white in the posterior region of the disc. The hindwings are very variable 

 in patf;ern ; the cellular white spots are large, small, or absent ; the discal white spots 

 vary from three to five; the submarginal row consists of three or four red spots; in 

 my specimens the underside has four to seven submarginal markings, and rather well- 

 marked discal rays of blue scales. White discal spots as above. 



('!■) : ab. mino7' Koni-. 

 Popilio jmrl-iiisoiii var. miiKir Honrath, /.r. p. 130. t. 5. f. 2 (^J). 2a ( J ) (1880) (New Britain). 



This aberration is ba.sed on small specimens. 



The pupa of P. jjhesttis (luer. is similar in general form to that of P. polytes L., 

 hut the two projecting points of the head are longer and more acute, and the abdomen 

 bears at the base and beliind a pair each of very large foliated protuberances, and on 

 the middle segments a pair of small processi. 



Jhtb. i\ew Britain (4 <?, 1 ?) ; New Ireland (8 r?) ; Solomon I^lands (10 J, 5 ¥). 

 Inhabits probably all the islands of the Bismarck Archipelago and of the Solomon 

 group. 



I'-iS. Papilio dunali ^lontrouz. 



(J. Pfipiliit ihiimli Moiitrouzier, Ann. Soc. Ph. Nat. Lifon p. 39G (185G) (WootUark T.) : id., Exscd 

 «. /. Fame. d. M';nd!. (Separ.). p. 118 (18.^7) : But!., P. Z. .S. p. 289. n. 91 (1K74). 



This insect seems to be more closely allied to P. phestiis (juer. than toP.ambmx 

 Boisd., as the hindwings have on the underside "deux taehes roses pres du bord anal, 

 et quatre taehes blanches par derricre, dont deux touchent le bord, et les autres 

 rent rent plus en dedans." 



Hub. Woodlark Island. 



XIX. CASTOR-GROUP. 



liasal partition of the subcostal vein of the hindwings somewhat longer than the 

 upper discocellular nervule. 



129. Papilio castor Westw. [c^,?]. 



cJ. Piipilio caaor Westwood, Au„. .lA-.v. .V. //. IX. p. 37 (1842) (Sylhet) : id., A,x. Knl. II. p. 129. 



t. 80. f. 2. 2* (184.'i) ; Doubl. Westw. & Hew., Hen. Uiurn. I.eji. 1. p. 12. n. 72 (1846); Wcstw., 



/'. Z. S. p. 479. t. 44. f. 1-3 (1881). 

 ? . P.ipiVa jiolliix Westwood, Ann. .Uar/. X. II. IX. p. 37 (1842) (Sylhet) : id., Are. ICnt. II. p. 129. 



t. 80. f. 1 (1845) ; boubl. Westw. A: Hew., /.<•. 1. p. 21. n. 2C4 (1852) : Weatw., P. Z. .>'. p. 479. 



t. 44. f. 4 (1881). 



