360 MR. H. H. DRUCE ON THE [June 2, 



distinct spots. Supposing, as I do, that the median nervule is con- 

 tinued to the margin, there is a large deep black spot narrowly 

 bordered inwardly with pale orange, and outwardly with brilliant 

 metallic light blue, between the first and second branches ; also a 

 lengthened black spot at the anal angle thickly covered with blue 

 scales, and bordered inwardly with a minute orange spot, which, 

 however, is not always present. 



Female. Dull blackish brown. Primaries of a lighter and more 

 brilliant violaceous blue in the discal area, and the costal and outer 

 margins evenly and broadly bordered. Secondaries with a tew blue 

 scales scattered over the surface, and a marginal row of large black 

 lunules, largest towards the anal angle, very narrowly bordered with 

 greyish blue. Underside as in male. 



Head, thorax, and abdomen coiicolorous with wings _: anteunsB 

 black above, spotted with white beneath. 



Expanse, c? 2 ItV-'t^?! inch. 



This species has a short black tail with a white tip on the lower 

 median nervule. 



Guadalcanar T. Tyoh, Malaita I. TJlaua I. 



The blue on the females from Ulaua I. has almost entirely dis- 

 appeared, and in specimens both from jNIalaita I. and Ulaua I. the 

 orange near the anal angle on underside of hind wings is replaced by 

 white. 



The markings on the underside, although armnged much as in 

 iV. macrophtlialma, are much more distinct than in that species. It 

 is also a smaller insect. 



Nacaduba ugiensis, sp. n. (Plate XXXI. fig. 5.) 



Female. Allied to iV^. plumbata. Disks of upper surface suffused 

 with a lighter and more brilliant blue. Underside much paler, and 

 with bases of both wings much more strongly suffused with hght 

 bluish-emerald -green. Expanse same as N. plumhata. 



Ugi I. (Mathew). 



Messrs. Godman and Salvin's collection contains three specimens 

 obtained by Mr. Mathew, but Mr. Woodford does not seem to have 

 met with any. The pale colour and strong suffusion of green on 

 the underside gives the species a remarkat)le appearance. 



Nacaduba euretes, sp. n. (Plate XXXI. figs. 6 c? , 7 $ .) 



Male. Allied to N. prominens, Moore. Upperside much more 

 briUiant violaceous silvery-blue, with the brown margins broader. 

 Underside with markings much as in N. prominens, but the sub- 

 marginal row of lunules on both wings very large, triangular, and 

 much darker than the bands. 



Female. Dark greyish brown, with the disk of the primaries 

 brilliantly suffused with light blue. 



Head, thorax, and abdomen concolorous with body. A short 

 brown tail tipped with whitish. 



Expanse, <J If-lj inch, J U-l-fo i"^'i- 



