( 430 ) 



enlarged white spots ou posterior margin ; oq the other haud, the first line is 

 traceable, almost uninterrupted, as far as to vein M, excurved ia snbmedian area. 

 Tooth at R' of hindwing somewhat siiarper. 



Bibianaha, Gold Coast, November 1911 (H. G. F. Spurrell). Type iu coll. 

 Brit. Mus. 



As a t3'pical specimen of annuligeru was taken by Mr. Spurrell iu Januar}' 

 1912 at the same locality, it is just possible that, in spite of its different aspect, 

 cara is a seasonal form of that species. 



104. Berta arfakensis spec. nov. 



c? ? , 24 mm. Shape, coloration, and aspect of chrysoUneata, which also 

 occurs in the Ninay Valley, c? antenna pectinate for less than half its length 



(in cki-ysoUiieata to beyond one-half). Forewiiiq with basal area white, with only 



a ver}' few olive markings ; an olive band from middle of posterior margin (where 

 it is nearly 2 mm. in width), outcurved a little between the medians, thence parallel 

 with termen, projecting strong teeth distad along the veins ; a band running from 

 this band at vein M, crossing the cell to costa at abont one-fourth ; both these 

 bands enclose large white spots, which tend in places to break them up into 

 pairs of lines ; a few olive spots in the enclosed white costal triangle, one on 

 midcosta being the largest ; a zigzag olive subtermiual line, thickening into two 

 blotches proximally between the radials ; a terminal line similarly thickened ; 



fringe cheijuered wliite and pale olive. lliiuhcinq with irregular olive blotching 



at ends of cell, enclosing a round white spot in the projecting lower arm of cell 

 and thickening and extending between the medians so as to join the outer line, 

 which is strongly dentate ; subterminal and terminal lines and fringe nearly as on 

 fore wing. 



Differs in venation in having the angulation of the discocellulars exaggerated 

 iu botii wings, R' of forewing longer stalked, SO' still arising beyond it, SC^ only 

 jnst before, or even just after, SO*, often anastomosing with SC. Superficially, 

 arfaJienais is best distinguished by having on botli wings a continuous white band 

 between the median and distal olive markings. 



Ninay Valley, Central Arfak Mountains. Dutch New Guinea (3500 ft.), 

 November 1908— March 1909. Type S in coll. Rothschild with; others of both 

 sexes; also in coll. Brit. Mus. and coll. L. B. Prout. 



105. Berta fenestrata spec. nov. 



3 ? , 23 mm. Face and head olive-green, vertex narrowly wliite. . Palpus 

 olive above, white beneath, t? antenna pectinated to abont two-thirds, the branches 

 long. Thorax and abdomen olive-green above, with white spots ; beneath white. Fore 

 and middle legs oliv(!-green, white beneath ; hindleg wliite, faintly tinged with 

 olive above. 



Wings dull olive-green, marked witli white. l-'orc.wimj broad, SC anasto- 



mosing with C at a ])oint or more, 8C'^ arisiug opposite SC'', not (as in all the 

 oliregrenit I have examined) anastomosing with S(!' ; discocellidars of jironounced 

 Berta shape ; base spotted with white ; a white subbasal baud not reaching costa, 

 l)artly confluent (esjiecially just behind M) with the succeeding ; a very irregular 

 antemediau wliite band, jirojecting and thickening distally in cell and still more 

 in snbmedian area ; a discocellular white patch, broadest anteriorly, whore it 



