(297 ) 



forewing, median bars R^ — M' always marked, bar M' — M^ also often present, median 

 bars SC — R^ generally developed to triangular patches ; discal bar deeply incurved, 

 more or less arrowhead-shaped, especially bar R^ — R', black or fulvous, prolonged 

 distad at the veins, these luniform markings in nearly the same position as the 

 discal lunnles of the underside, the latter markings, therefore, not shining through 

 above, or the discal Innules of the upperside are partly a little more proximal than 

 those of the underside (in the allied species the reverse is the case) ; postdisco-sub- 

 marginal patches more or less ovate, 2 to 7 mm. in diameter, patch SC— SC'^ the 

 largest, black or brownish black, separate from the black, or blackish brown, edge of 

 the wing, but sometimes the adiuarginal interspace, except the last ones, so densely 

 shaded with black that the rounded outer edge of the spots is scarcely traceable ; 

 discal and postdiscal interspaces paler than the basal area of the wing, sometimes 



white. Hindwing : median bars C — W seldom absent, the following two or three 



seldom present ; bar D present only in a few forms ; discal luniform bars present 

 in some subspecies, in the subspecies from New Hanover very heavy ; postdisco- 

 sulimarginal jiatches ovate, the second the largest, the white snbmarginal dots within 

 them sometimes absent from the upper patches. 



Underside paler than in c?, the submedian, discal, postdiscal and adraarginal 

 interspaces of both wings especially pale, bars as in cJ, discal ones of forewing more 

 arched, the discal interspaces of both wings with fulvous yellow or lilackish scaling 

 distally, this scaling 'forming triangular patches which arc distally bordered by the 

 discal lunules. 



Length of forewing : S, 38 — 45| mm. 

 „ „ „ ? , 47— .57 mm. 



Penis with one prominent tooth before the tip (PI. VIII. f 1, papuensis), usually 

 accompanied by one or two minute teeth, a few more small ones about 2 mm. from 

 the tip ; the dentition varies a little, but is essentially the same in all the sul)species 

 of latona ; no other Ckaraxes has the same armature. 



Hah. Sulla Islands, Northern Moluccas, Aru Islands, New Guinea and the 

 islands near its coast, Bismarck Archipelago. Not recorded from the Southern 

 Moluccas (Ceram, Amboina), the Key Islands, North Australia, and the Solomon 

 Islands. The species is geographically very variable; the extreme subspecies {diana 

 from New Hanover and mcridionalis from British N. Guinea) are very different in 

 appearance, but are connected by intermediate forms. 



((. Ch. latona artemis Rothsch., subsp. nov. 



c?. Wings above : black border of forewing extending at costal margin nearly 

 to apex, its inner edge concave from SO to M', crossing R^ mm. from D^, an 

 indistinct fulvous (discal) spot in the border behind R', no median bars R' — M* ; 

 discocellnlar bar obsolete behind, being black only in front; outer margin of forewing 



somewhat more concave than in latona latona. Hindwing as in Batjan specimens, 



the black border rather narrower ; the three last adiuarginal fulvous inters})aces 

 marked, of which the anal one is more yellow, edge of wing (not fringe) brown 

 between R' and SM', except at veins. 



Underside on the whole somewhat paler than in Batjan and Halmahera 

 examples, especially the forewing, the bars thinner and tlieir whitish plumbeous 

 edges much less distinct ; on the hindwing the median bars R' — M' are not 

 continuous, upper end of bar R'^ — R^ more distal than lower end of bar R' — R-, 

 and lower end of bar R^ — R^ more proximal than upper end of bar R' — M'. 



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