340 EXOTIC MICROLEPIDOPTEKA. 



narrow, costa hardly arched, apex obtuse-pointed, tcrmen extremely 

 obliquely rounded; white; a rather broad dark fuscous costal 

 stripe from base to |-, cut by an irregular oblifjue white streak 

 beyond middle of wing ; a slightly broader rather dark bronzy- 

 fuscous dorsal stripe from base to 4 of wing, where it tends to be 

 connected by suffusion with extremity of costal, more or less 

 broadly and irregularly suffused or interrupted with white before 

 this; stigmata in one specimen blackish, well-defined, discal approxi- 

 mnted, plical obliquely before first discal, resting on dorsal streak 

 beyond middle of wing, in the other only confusedly indicated by 

 scattered dark fuscous scales; an irregular black streak along 

 costn from just beyond costal stripe to apex : cilia white, with 

 black hook at apex and tips black above this, towards tornus grey. 

 Hindwings and cilia grey ; an expansible subcostal pencil of grey 

 hairs from base. 



Oauit, Koolau Mts. (Perl-ins) ; two specimens. 



Hyposmocoma triptila, n. sp. 



c? . 8 mm. Head whitish-ochreous. Palpi white, second joint 

 dark fuscous except tip, terminal joint shorter than second. 

 Thorax dark fuscous. Abdomen purple-blackish, anal tuft whitish. 

 Forewings elongate, rather narrow, costa gently arched, apex 

 pointed, termea extremely obliquely rounded ; dark purplish- 

 fuscous ; a broad irregular-edged ochreous-whitish dorsal streak 

 from base to tornus, thence more narrowly to middle of termen, 

 soraewhat sprinkled with dark fuscous, with three tufts of ochreous- 

 whitish scales on its upper edge before and beyond middle of Aving 

 and above tornus ; stigmata obscurely indicated, plical more dis- 

 tinctly darker in a depression of dorsal streak ; a cloudy ochreous- 

 whitish spot on costa at f : cilia purplish-grey mixed with dark 

 fuscous, towards tornus ochreous-whitish. Hindwings pointed, 

 grey ; a dark grey subcostal hairpencil from base lying on a dark 

 grey costal patch ; cilia whitish-grey. 



Oahu, Koolau Mts. {Ferkiiis) ; two specimens. 



Hyposmocoma petroscia, n. sp. 

 • ^ 2 . 8-9 mm. Head and thorax white sprinkled with grey 

 and dark fuscous. Palpi white, sprinkled with dark fuscous, 

 terminal joint shorter than second. Abdomen grey, anal tuft 

 whitish. Forewings elongate, costa slightly arched, apex pointed, 

 termen extremely obliquely rounded ; white, irregularly sprinkled 

 with grey and dark fuscous ; a more or less extended blotch of 

 dark fuscous suffusion along basal portion of costa, and a more or 

 less developed dark fuscous siibcostal streak beneath this ; an 

 elonfjate dark fuscous spot towards dorsum at i, one towards costa 

 before middle, and one in disc someAvhat before this, all variable 

 in development; stigmata rather large, cloudy, dark fuscous or 

 blackish, discal approximated, plical obliquely before first discal, 

 sometimes confluent with it ; a similar spot between second discal 

 and apex ; some cloudy dark fuscous dots on margins towards 



