(298) 



obsolete towards the costal margin. The white band of tlie hindwings mostly enters 

 the ai)ex of the cell ; at the costal margin it is often (iihited towards the base ; the 

 anal orange-red spot is in some specimens feeble. On the underside the white discal 

 patch consists of seven spots, which are larger than in P. fimciw (foeze, and of which 

 the third and fourth often touch the apex of the cell. 



In the/e7?irt/e the forewings exhibit above a faint m.\cnl:u- pale band, wliich is 

 clearly marked below, and becomes on both sides ob.solete anteriorly; in my feniale 

 from New J^ritain there is a minute white spot in the apex of the cell on the 

 underside of the hindwings. 



Hah. New Ireland (8 <?, 1 ?); New Britain (13 <?, 6 ?); (?) Duke of York. 



This species is very constant in comparison with its allies, and can always 

 readily be recognised by the pattern of the wings. Intermediate examjiles between 

 this I'apilio and P. albinns Wallace and P. fn,scn.s Goe/.e are unknown to me. 



80. Papilio albinus Wallace [J, ?]. 

 Papilio sevenis auct. p.p. ? 

 Papilln nllinu.1 Wallace, Tr. Linn. .S.-c. Lmid. XXV. p. 49. n. 54. (. 5. f. 5 (J) (18G,')) (New 



Guinea) ; Oberth., El. d'Ent. IV. p. 4f). n. 73 (1879) (Aml)erbaki) ; Grose Smith, .Wnr. Znol. I. 



p. :i33. n. 8 (18(14) (Humboldt Bay). 

 Papilio sera-US var. alhinus, Kirsch, .^fillJl. ^^lts. Dresden I. p. 1 1-2. n. 4 (1«77) (Twiorage ; Waweji ; 



Dorey : Nappan) {an P.fusciis heccarii Oberth. ?). 

 J J . Pupilin alhinus var. aelcareiisis Honrath, Berl. F.nl. Ziit. XXIX. p. 27.5 (188.0) (Sekar, 



N. Guinea occ). 



The differences between P. albinus and P.phsciLs beccnrii, though rather slight, 

 seem to be constant. The inale of P. albinns has the .scales of the outer half of the 

 forewings on the upperside, especially towards the hinder angle, conspicuously longer, 

 so that the scaling appears more irregular, and the serial arrangement of the scales 

 almost imjierceptible. There are no blue scales behind the white area. The white 

 discal markings on the underside of the hindwings stand closer to the cell than in 

 P.fuscus beccarii Oberth. in either sex; the second, third, and fourth spots are 

 exteriorlv rather deeply emarginate, so as to make the anterior angle of each s]iot sharp. 

 The anal valves of the male are more triangular than in P.fnsciis beccarii Oberth. 



ITiis is all I can find by wliich to distinguish my s]iecimens of P. nlbiiias from 

 P.fuscus beccarii Oberth. I must add that the di.stribution of i'. aWw/ius, which 

 inhabits the whole of New Guinea, is also different from that of beccarii, which flies 

 in Dutch and German New Guinea, and is replaced in British (South) New (iuinea 

 by P. fuscus indicatus Butl. It is, however, not impossible that P. albinus is 

 nevertheless a form of beccarii which is localised in a certain sense, being confined 

 perhaps to swamps, while P.fuscus beccarii and indicatus, which are so close allies 

 of the Australian P.fuscus capaTieus, may inhabit dryer localities. 



To P. albinus belong two geograiiliical races: — 



(a): P. albinus Wall., forma typ. [cJ, ?]. 

 The white area of the hindwings is in six out of my seven specimens nuicli 

 larger than in P. fuscus beccarii, entering the cell as far as the origin of the middle 

 median nervule ; in the seventh specimen (?) it is not larger than in certain 

 beccarii ; sometimes it is extended along the costal margin towards the base. The 

 hindwings have above mostly an orange anal spot, and sometime.s one submarginal 

 lunule; below, the discal white markings vary in number from 5 to 2 in the male; 

 in the female the series is complete, but the last spot is almost obliterated ; the sulv 

 marginal spo^s vary in the nide from 7 to 0, in the other sex llie series is coin))lete. 



