1905.] heterocera from the fiji islan'ds. 93 



Utetheisa pulchella L. 



One specimen in which the red stripes are ahxiost obsolete. 



NOCTUID^. 



Arcilasisa plagiata Wlk. 



One specimen of this very variable insect. 



Stictoptera describens Wlk. 



This is, I believe, a new locality for this species. 



Argyrothripa nigrostrigata, sp. nov. (Plate YIII. fig. 4.) 



Head and thorax whitish grey, abdomen darker grey. Primaries 

 pale grey, with a slightly darker basal patch on the costa having 

 a prominent black edging all round except on the costa ; medial 

 and postmedial lines very irregular and dentate, almost parallel, 

 the area between being slightly darker in colour ; subterminal line 

 prominent, black, slightly excurved, a small apical black spot ; 

 termen finely dotted with black. Secondaiies whitish sub-hyaline, 

 with the costa and termen grey, the latter tapering rapidly towards 

 the tornus. 



Expanse 34 mm. 



The type is in my collection from the Kebea Range, British 

 New Guinea, where it flies in July at an altitude of 3600 ft. In 

 the National Collection, however, is a single specimen from Fiji, 

 which is almost identical with the New Gvxinea specimens, the only 

 diiference being that it is slightly paler. 



Hyp^na masurialis Guen. 



One specimen of the iovxn. ferriscitalis Wlk. 



Geometrid^. 

 Alcis vitexsis, sp. nov. (Plate YIII. fig. 5.) 



S . Head and thorax ochreous brown ; abdomen grey, scaled 

 with ochreous brown. Both wings warm ochreous brown. 

 Primaries with basal line blackish, irregular, outwardly produced 

 in the centre ; median line angled at the cell, then receding slightly 

 basewards and slightly inteiTupted ; postmedial line fine, black, 

 dentate, angled outwards at veins 6 and 7, then receding rapidly 

 basewards ; a trace of a subterminal pale line which is interrupted 

 and irregular ; termen finely darkly-dotted. Secondaries with median 

 dark line from upper margin of cell slightly curved ; a darkish in- 

 definite small cell-spot pupilled with whitish ; postmedial line 

 blackish, crenulate, with a slight outward curve in the median area ; 

 Riibterminal pale line more distinct than in the primaries, with 

 indefinite dark spots on its inner margin. Abdominal fold whitish. 

 Both wings are somewhat irrorated with fine blackish scales. 

 Under surface of primaries dark brown, with blackish cell-spots, on 

 each side of which is a pale patch and another small pale patch at 



