( 263 ) 



middle ; beneath it towards apex, and continued along hindmargin, bnt thinner and 

 less distinct, is a deep orange-red line. 



Hiiulwings : similar, bnt only the median line visible ; the spots at end of 

 veins larger, and the fringe itself mottled with ochreons between the veins. 



Underside of forewings dull green along costal and hindmargin, gilded yellow 

 at centre ; of hindwings briglit golden -yellow throughout ; fringe of forewings dark 

 brown-grey, of hindwings wliitish grey. Head, thorax, and abdomen all concoloroiis 

 green, the anal segment alone yellowish ; underside of abdomen and legs jjale 

 ochreons ; antennae fuscous. 



Expanse of wings : 22 mm. 



1 cf from Isabel Island, June— July 1901 (Meek). 



Much smaller than the otiier species ; hindtibiae with all four spurs. 



Genus Diplodesma Warr., Nov. Zool. iii. p. 289. 



Acriirtha Warr., Nov. Zooi.. iii. p. 3lil. 



The only difference between these genera appears to be sexaal. In the SS 

 veins 10 and 11 are separate (as in Diplodesma) ; in the ? ? they are coincident (as 

 in Acrortha). In the ? ? they anastomose and become coincident with the costal 

 vein; in the S S \\ does likewise, bnt not 10, which only touches 12 at a point, the 

 course of 12 after the osculation being very fine and easily overlooke 1. In all other 

 respects the two genera agree : veins 6, 7, 8, 9, Id, 11 are stalked together, and 3, 4 

 of forewings also. 



Thalassodes obiui.pta Swinh. (=7y(. mclica Swinh.) is referable to this genns, 

 the types of both being S S ; and I am inclined to think that N. viata Moore (the 

 type a ? ) is the same insect. 



17, Halterophora thalassias spec. nov. 



Foreivings : blue-green; deeper on the basal side of an obliipie, irregularly 

 waved, whitish line from apex to before middle of inner margin, where it becomes 

 white ; immediately before the whitish line the blue-green shades into deep sea- 

 green ; beyond the line tlie marginal area is paler blue-green mixed witli whitish, 

 showing traces of a waved whitisii outer line in lower half of wing ; base of wing 

 with a slightly j)aler shade of bluish green, its edge rounded, but not marked by 

 dots or any distinct line ; cell-spot brown ; costal edge white, thickly mottled with 

 brown flecks, which at base become coalescent ; fringe j)ale olive-green, slightly 

 deeper beyond veins. 



Hindvnngs : with tiie oblique white line of forewings continued at one-tifth 

 from base, the white shading gradually into blue-green, and that again into deep 

 sea-green before a slightly concave white line at two-thirds ; the same transition 

 occurring, but the green more yellowish, before a waved subniarginal line; the 

 marginal area pale bine-green before tiie fringes, which are like those of forewings ; 

 cell-sjiot small, dark green. 



Underside of forewings whitish green, deeper green towards costa and in cell ; 

 costal white area broader, with the brown mottlings less dense but more distinct ; 

 cell-spot brown ; fringe with the mottled j)atches at end of veins brown ; hindwings 

 white ; cell-spot green. Face, ])alpi, vertex, and shoulders green ; patagia and 

 metathoracic tuft whitish mixed witli green ; abdomen white ; legs greenish, the 

 tarsi fuscous, dotted with white ; antennae dull greenish white, darker beneath. 



Expanse of wings : 44 mm. 



