MACROLEPIDOPTERA 227 



middle forming a deep abrupt loop inwards beneath discal spot ; round orbicular and 

 reniform discal spot reddish-brown : cilia grey-reddish. Hindwings light yellowish ; 

 two obliquely placed rosy-grey discal spots ; a faint rosy-grey postmedian line ; cilia 

 whitish-rosy. (Plate VI. fig. 8.) 



4 specimens, Kaholuamano, Kauai, at 4000 feet, in April. The variation in the 

 structure of vein 10 of forewings is curious but does not impair the generic definition, 

 though enlarging it ; it appears to be normal in this species, for the four individuals all 

 differ in this respect, varying from complete separation through partial fusion to stalking 

 for fully half their length. 



NOMOPHILA Hub. 



(i) NoviopJiila noctuella Schiff. 



10 specimens ; i Olaa, Hawaii ; i Haleakala, Maui, at 5000 feet ; 6 Waianae Mts., 

 Oahu, at 1300 feet; 2 Mts. Waimea, Kauai, at 4000 feet; from April to June, and in 

 September. Almost a cosmopolitan species. 



Hellula Gtien. 



(i) Hellula undalis Fab. 

 2 specimens ; i Honolulu Mts., Oahu ; i Mts. Waimea, Kauai, at 4000 feet ; in 



June. 



Promvlaea, gen. nov. 



Face rounded, vertical ; ocelli present ; tongue developed. Antennae f , in ^ — ? 

 Labial palpi rather short, porrected, with appressed scales, terminal joint short, pointed. 

 Maxillary palpi extremely short, resting on base of labial. Posterior tibiae with outer 

 spurs f. Forewings normal. Hindwings with vein 3 absent, 4 and 5 closely approxi- 

 mated at base, 7 remote from 6 at origin, anastomosing with 8 to near middle, lower 

 median without pecten. 



This genus is closely allied to Mestolobes, but differs in the extremely small (hardly 

 visible) maxillary palpi, and the separation of veins 4 and 5 of hindwings ; the t may 

 probably show differences in respect of the secondary sexual characters of hindwings. 



( I ) Promylaea pyropa, sp. nov. 



%. 18 mm. Head and thorax deep shining bluish-leaden, back of crown orange. 

 Palpi orange. Abdomen dark fuscous. Legs prismatic-fuscous, middle and posterior 

 M. F. H. 30 



