Lepidoptera from the Hawaiian Islands. 39 



white dots to the inner margin ; between these two 

 stripes is an abbreviated crinkled black-edged testaceous 

 stripe, which crosses the end of the cell; a marginal 

 series of black-edged white dots ; fringe grey, black at 

 base, and traversed by a slender white line ; secondaries 

 with the basal two-thirds paler ; a large ovoid mealy 

 yellow patch on the costal area of the male, and resting 

 upon it a broad basal pencil of curly pale yellow and 

 white hairs ; fringe broad, white, traversed near the base 

 by a black stripe, and broadly tipped with grey ; abdo- 

 men of the male with ochraceous basal segments ; anal 

 tuft banded with white at the base ; primaries below 

 grey, with bronze reflections, inner border broadly 

 silvery white ; an indication of the white discal stripe 

 of the upper surface ; fringe almost as above ; secondaries 

 sordid creamy whitish, with grey discal stripe and 

 external border ; fringe nearly as above ; body below 

 creamy whitish ; palpi blackish ; anterior tibiae and 

 tarsi banded above with black. Expanse of wings, 

 13 mm. 



" Two specimens, male and female, on rocks in the 

 beds of mountain streams, high up in the mountains ; 

 flies freely in the sunshine." — T. B. 



Until I had carefully examined the structure of this 

 species I mistook it for a Simcetliis or Orosana ; it, how- 

 ever, possesses the distinctive characters of Mestolohes, 

 differing only from the typical species in the absence of 

 the lateral abdominal hair-pencils and the tibial tufts of 

 the posterior legs ; each of the three species differs 

 in its brush ornamentation, and on that account some 

 authors would doubtless regard them as types of different 

 genera. 



10. Mestolohes semiochrea, n. s. (No. 156). 



^ . Primaries with the basal third whitish, minutely 

 irrorated with grey, and bounded externally by a nearly- 

 straight white line, followed immediately by a black 

 stripe, upon which are four small buff-coloured dots, two 

 black dots placed obliquely from costal margin near the 

 base ; external two-thirds greyish brown, mottled with 

 whity-brown ; a slender angulated and undulated externo- 

 discal blackish line, bordered outwardly with whitish, 

 and commencing upon the costa in a small buff" spot ; a 



