242 FAUNA HAWAIIENSIS 



sometimes a cloudy dark fuscous discal dot ; sometimes obscure lighter subterminal 

 and terminal shades, separated by a sometimes well-marked waved dark fuscous 

 line : cilia ochreous-fuscous, tips paler. Hindwings dark fuscous ; sometimes very 

 obscure streaks of yellowish suffusion below middle and towards costa posteriorly ; 

 cilia light yellowish, more or less fuscous-mixed towards base. 



14 specimens ; 6 Haleakala, Maui, at 4000 — 5000 feet ; 2 Waianae Mts., Oahu, 

 at 2000 — 3000 feet ; 4 Molokai, at 3000 — 4000 feet ; 2 Kauai, at 4000 feet ; from 

 April to June, and in September. Varies considerably, whilst always very obscure ; 

 from O. 7netalycia it differs in the narrower forewings, ochreous colouring, and 

 dorsally closely approximated first and second lines. 



(3) Orthomecyna heterodyas, sp. nov. 



i. 25 — 28 mm. Head, palpi, thorax, abdomen, and legs brownish-ochreous, 

 fuscous-tinged. Forewings rather elongate, brownish-ochreous, distinctly yellowish- 

 tinged, sprinkled with fuscous ; first and second lines cloudy, whitish, first irregular, 

 second curved outwards on upper f : cilia fuscous-whitish, mixed with brownish- 

 ochreous (imperfect). Hindwings whitish-fuscous, becoming fuscous towards termen ; 

 ciha as in forewings. (Plate VI. fig. 23.) 



2 specimens, Kilauea, Hawaii, in June and August. 



(4) Orthomecyna crossias, sp. nov. 



$^. 23 — 28 mm. Head and thorax dark fuscous, somewhat mixed with light 

 ochreous-yellowish. Palpi dark fuscous. Abdomen pale yellow-ochreous, in $ little, in 

 $ mostly suffused with fuscous. Legs dark fuscous, ringed with pale yellow-ochreous. 

 Forewings elongate, brown, densely irrorated with dark fuscous ; first and second lines 

 indicated by a diffused ochreous-yellow irroration, only defined on costa, where it forms 

 two well-marked yellowish spots ; a more or less marked yellowish suffusion towards 

 middle of costa ; a small undefined dark fuscous discal spot, in $ followed by a sub- 

 quadrate white spot, and connected with middle of dorsum by a broad irregular whitish 

 suffusion ; an undefined ochreous dentate line resting on termen : cilia ochreous- 

 yellowish mixed with dark fuscous. Hindwings fuscous, becoming dark fuscous 

 posteriorly ; very obscure streaks of yellowish sufiusion beneath middle of disc, and 

 towards costa posteriorly ; cilia ochreous-yellowish, base in $ mixed with dark 

 fuscous. 



2 specimens, Oahu, at 2000 feet, in April. 



