the Genus Imma. 181 



gate, grey, whitish-yellowish on sides and beneath, in 9 dark grey, 

 ochreous-whitish beneath. Posterior tibiso hairy beneath on basal 

 half. Fore-wings elongate, posteriorly dilated, costa gently arched, 

 apex rounded-oljtiise, terinen slij^htly rounded, nearly vertical ; 7 

 and 8 stalked, 8 to termen ; in ^ ochreous-fuscous, more or less 

 wholly suft'used with ochreous-yellow, especially on veins and in 

 cell, in $ darker fuscous ; a dark fuscous streak along basal fourth of 

 dorsum ; a slender irregular pale yellowish fapcia from before middle 

 of costa to I of dorsum, edged anteriorly with a i'ew dark fuscous 

 scales, in $ less marked and becoming dbsolete towards dorsum ; an 

 indistinct darker discal dot at |; a small pale yellowish spot on costa 

 at f , whence proceeds an undefined pale line or series of marks to 

 tornus, in 9 nearly obsolete ; costal edge in ^ blackish between 

 this spot and the next ; a small pale yellow triangular spot on costa 

 towards apex, whence proceeds a pale yellow submarginal line to 

 termen above tornus, edged posteriorly with blackish-fusrous ; lilia 

 pale fuscous, beneath apex with a pale yellowish patch. Hind-wings 

 in ^ with slight submedian and subdorsal grooves ; dark fuscous, 

 basal I almost naked, transparent, with dark fuscous veins ; cilia 

 fuscous, towards base dark fuscous, tips whitish. 



Solomon Islands (Choiseul, Gizo, Rendova) : six speci- 

 mens {Me ell). 



29. I. dmptrias, n. sp. 



$. 18 mm. Head fuscous, sides of crown yellowish, face yellow- 

 whitish. Palpi yellowish, second joint externally with a dark 

 fuscous streak on upper half, terminal joint short, fuscous. Antenna? 

 dark fuscous, basal joint with apical anterior scale-tooth. Thorax 

 purplish-fuscous, with a few yellowish hairscales. Abdomen dark 

 purplish -fuscous, beneath yellow-whitish. Fore-wings elongate, 

 narrowed towards base, posteriorly dilated, costa posteriorly gently 

 ai'ched, apex rounded, termen somewhat rounded, little oblique ; 7 

 and 8 stalked, 8 to apex ; dark fuscous, basal | suffused with violet- 

 blue ; short yellowish subcostal and median streaks from base, con- 

 nected at base, merged posteriorly in a broad transverse band of 

 tawny-ochreous suffusion, limited by a narrow yellow fascia from 

 before middle of costa to near middle of dorsum, not quite reaching 

 it ; a triangular pale yellow spot on costa just before apex, and a 

 series of faint yellowish dots before termen ; cilia fuscous. Hind- 

 wings transparent, with dark fuscous veins; a broad costal and 

 narrower irregular terminal band dark fuscous ; cilia fuscous. 



New Guinea (Aroa River) ; one specimen {Meek). 



