( 310 ) 

 Of this species two local forms are known : — 



(a): P. bridge! Mat lunv, forma typ. [c?, ?]. 



S- The tvpe-specimen in the collection of Messrs. Oodman i^ Salvin came 

 from Treasury Island, where Mr. Mathew obtained only tliis single individual ; it 

 is very small, and has the spots of the macular band of the forewings minute. The 

 indi\iduals from the Shortland Islands are much larger tlian the type, and ha\e 

 the hand of the forewings broader. I have, however, one specimen from Ahi Island, 

 Short land Islands, which is inferior in size to Mnthew's tyjie, and exhibits (he same 

 small spots on the forewings; another individual from .Mu stands just intermediate 

 between the type and the usual large Alu form. 



The posterior spot of the band on the forewings above, situated behind the 

 submedian vein, and the three anterior ones between costal margin and fifth 

 .subcostal ner\Tile, are sometimes obliterated. The band of the hindwings is not 

 quite constant in breadth, especially the posterior patches vary in size ; in- one of 

 my examples there is a minute white spot in the end of the cell. 



Below, the forewings have sometimes a more or less complete series of feeble 

 white submarginal si)ots. On the disc of the hindwings there stand often, besides 

 the blue markings, some small tawny ochraeeous spots between the median and 

 discoidal nervules. In an Alu .specimen, collected by ^Ir. Woodford, the space 

 between the fourth, fifth, and sixth submarginal spots and the corresponding blue 

 discal markings is denselj- overpowdered with tawny ochraeeous scales. 



5. The Tnarkings vary from white to bufi"; they are very inconstant in size, 

 and never so well defined above as in P. hecataeus (iodin. iS: Salv. and pronpero 

 Grose Smith. The marginal spots of the forewings beneath are mostly confluent 

 with the small submarginal spots, and assume the form of the head of a nail (nearly 

 as in the Tnale o{ P. polytes L.). Sometimes these nail-head-shaped spots are also 

 marked above, but in most specimens only the marginal, not the submarginal, spots 

 are present on the upperside. 



Though the males of P. hridgei Alath. are well distinguishable from those of 

 P. hecataeus Godm. & Salv. and jyrosijero Grose Smith, the fenvdes are scarcely 

 different enough to be specifically separated. The only constant character by which 

 I can distinguish hridcjei-'i from the same sex of the other two "species" is 

 unimportant enough: the spots of the band on the upperside of the forewings are 

 rather ill defined, and the two spots between the second discoidal and second median 

 veins are rather longer. 



Hab. Solomon Islands: Treasury Island, ShortlanJ Islands (15 cJ, 8 ?). 



{V) : P. bridge! tryoni .Mathew [c?]. 



cJ. Papilio tnjom Mathew, Tr. Eiit. Soc. I.oml. p. 31.T (1889) (Ugi I., Solomon Is.). 



The male only is known. It difl'ers from that sex of P. h)-id(/ei Mathew in the 



l)and of the forewings consisting of five spots instead of seven to ten. I have a 



specitneu from Isabel Island (k.ste Capt. Webster) which has six spots. This ])roves 



that P. tryoni is not a distinct species. 



Huh. Solomon Islands: Ugi Island, Isalx-l Island (1 S). 

 I 



93. Pap!l!o hecataeus Godm. & Salv. [cJ, ¥]. 



(J ? . Papilio hicahiem Godman tS; Salvin, Ann. .Mag. X. IT. (fi). I. p. 213 (1888) (Guadalcanar I.). 



cj. The fifth and sixth spots of the macular band of the forewings are .sometimes 

 very small. Below, the subapical spots of the forewings vary much in size : near the 



