352 Transactions. 



pronounced costal shoulder with scale-projection at about \ of hindwings, 

 the costal edge being quite regularly arched. The family as hitherto known 

 is entirely restricted to the Hawaiian Islands, where it constitutes the mass 

 of the Micro-Lepidopterous fauna, the known species approaching 300, and 

 indicating a probable total of quite 500. The following species (quite cer- 

 tainly a characteristic member of the family) is the first discovered elsewhere, 

 and is therefore of very great interest ; but it must be observed that the 

 Tireina of the other Pacific islands are hardly at all known yet (I wish 

 some one would explore them), and some may be found there. The new 

 species would seein, however, to be an extreme straggler from the centre of 

 development. 



Irenicodes n. gen. 



Head with appressed scales, side tufts somewhat raised ; ocelli small, 

 posterior ; tongue developed. Antennae |, in (J moderate, fiiliform, simple, 

 basal joint moderately elongate, without pecten. Labial palpi moderately 

 long, curved, ascending, rather slender, with appressed scales, terminal joint 

 shorter than second, acute. Maxillary palpi rudimentary. Posterior tibiae 

 clothed with long hairs above. Forewings with 16 short-furcate, 2 from 

 angle, 3 absent, 6 and 7 out of 8, 7 to costa, 11 from middle. Hindwings |, 

 narrow-lanceolate : cilia 3 ; 2-4 parallel, 5 absent, cell open between 4 and 6, 

 6 and 7 stalked. 



This genus represents an advanced form of the family, and therefore offers 

 no assistance towards the problem (at present insoluble) of the geographical 

 origin of the oldest portion of the Hawaiian fauna. 



Irenicodes eurychora n. sp. 



cJ. 13 mm. Head and thorax pale-ochreous. Palpi whitish, second 

 joint suffused with grey anteriorly except at apex. Antennae grey. 

 Abdomen dark grey, anal tuft ochreous-whitish mixed with grey. Fore- 

 wings narrowly elongate-lanceolate, long-pointed, acute ; pale brownish - 

 ochreous ; a costal streak of dark-fuscous irroration from base to near apex, 

 and a similar somewhat narrower dorsal streak attenuated to extremities 

 from base to near tornus : cilia grey, towards base scaled with ])ale ochreous. 

 Hindwings dark fuscous : cilia rather dark grey. 



Paekakariki, in March (Hudson) ; one specimen. 



Oecophoridae. 



Borkhausenia ancogramma n. sp. 



(J. 16 mm. Head ochreous-grey-whitish sprinkled with fuscous. Palpi 

 ochreous-whitish, basal half of second joint and a subapical ring dark fuscous, 

 terminal joint | of second, with dark-fuscous subbasal and subapical rings. 

 Antennal cilia tions under 1. Thorax fuscous somewhat mixed with ocherous- 

 grey-whitish, suffused with dark fuscous towards margins. Abdomen 

 whitish-ochreous mixed with light-brownish. Forewings elongate, costa 

 gently arched, apex obtuse, termen rounded, rather strongly oblique ; pale 

 ochreous irregularlv sprinkled with light-brownish and a few dark-fuscous 

 scales ; a thick dorsal streak of pale ground-colour from base to near tornus, 

 sprinkled with light fuscous on a patch beyond middle and with dark fuscous 

 on dorsal edge towards base, margined above by an obtusely angulated dark- 

 fuscous streak (suffused above with fuscous) from base of costa to plical 



