436 Mr. Butler's descriptions of Lepidoptera- 



middle and the secondaries at the middle ; a paler and more diffused 

 band beyond the latter, its outer edge zigzag ; secondaries also with 

 a submarginal stripe of the same colour ; an almost marginal 

 series of black points alternately placed with a series of small 

 brown spots at the base of the fringe ; markings below less strongly 

 defined. Expanse of wings, 23 mm. 



Peak Downs. 

 Allied to /. attributa. 



91. Idcea Jessica, n, s. 



Nearly allied to the preceding species, smaller, the primaries 

 more acute ; the band beyond the middle much nearer to the outer 

 margin, narrower, paler, and less u-regular ; the discal band 

 following it better-defined upon the primaries, and with undulated 

 (not zigzag) external edge ; a submarginal series of grey-brown 

 spots on all the wings ; dots at outer margin extremely minute ; 

 secondaries with a black dot at the end of the cell. Expanse of 

 wings, 17 mm. 



Peak Downs. 



92. Idcea nivipennis, n. s. 



Snow-white ; wings crossed beyond the middle by two parallel 

 slender grey dentated lines and two subconfluent squamose sti'ipes 

 near the outer margin ; a marginal series of very minute blackish 

 points ; primai'ies with a very slenderly ochraceous costal margin ; 

 a minute black point at the inferior angle of the cell ; face brown, 

 darkest towards the vertex of the head, the latter white ; front of 

 collar orange; antennaa brown, becoming white at the base; under 

 surface snow-white ; the costal margin of the primaries ochreous 

 anterior coxae yellowish ; anterior tibiae and tarsi brownish above. 

 Expanse of wings, 2G mm. 



Viti Islands. 



93. Id(ea iunoccns, n. s. 



Belongs to the /. ortutta group ; small ; chalky white, with small 

 but conspicuous black disco-cellular spots ; a very irregularly 

 sinuous olive brownish line crossing the primaries in front of the 

 disco-cellular spot, cm-ving inwards below it and then downwards 

 with a slight curve inwards to inner margin, crossing the 

 secondaries obhquely behind the disco-cellular spot at about the 

 basal third ; a faint indication of a brownish discal line, followed 



