2 36 FAUNA HAWAIIENSIS 



(i8) Mestolobes pessias, sp. nov. 



^g. 15 — 23 mm. Head, palpi, and thorax whitish-ochreous or whitish, variably 

 mixed with fuscous and dark fuscous. Abdomen fuscous or dark fuscous, segmental 

 margins ochreous-whitish, in t beneath with lateral curled tufts below middle. Legs 

 whitish, variably banded with dark fuscous. Forewings brownish-ochreous or fuscous, 

 sometimes mixed with dark fuscous or whitish ; a blackish subbasal line more or less 

 marked on upper half; first line white (seldom pale or obsolete), irregular, angulated 

 above middle, partially dark-edged, often followed by a fascia of whitish suffusion 

 sometimes confluent with it ; an 8-shaped ochreous dark-outlined discal spot, sometimes 

 very obscure ; second line white (seldom pale or obsolete), anteriorly dark-edged, 

 curved outwards from ^ to f ; a terminal series of dark fuscous spots : cilia ochreous- 

 whitish or seldom fuscous, barred with darker fuscous, and with a dark fuscous sub- 

 basal line. Hindwings in ^ ochreous-whitish, with a moderately broad dark fuscous 

 terminal band, its anterior edge with more or less developed acute projection in 

 middle ; in % dark fuscous, darker terminally ; in ^ with moderately broad ochreous- 

 whitish dorsal lobe ending in tuft of black scales, and whitish-ochreous costal hair- 

 pencil ; cilia ochreous-whitish, with two more or less marked fuscous or dark fuscous 

 lines. (Plate VI. fig. 18.) 



74 specimens, Haleakala, Maui, at 5000 feet, in May. Extremely variable in 

 the development of the white and dark fuscous colouring ; the white predominates 

 much more in the Z than in the %. 



(19) Mestolobes chimonias, sp. nov. 



^. 20 — 22 mm. Head, palpi, and thorax brown, somewhat mixed with pale 

 and dark. Abdomen fuscous, segmental margins whitish-ochreous. Legs dark fuscous, 

 ringed with whitish-ochreous, posterior tibiae whitish-ochreous. Forewings fuscous, 

 irregularly mixed with ochreous-whitish and sometimes with dark fuscous ; first and 

 second lines slender, whitish, more or less dark-edged and margined on both sides with 

 yellow-ochreous suffusion, first angulated above middle, sometimes nearly followed by a 

 fascia of whitish suft'usion, second at ^, middle third curved outwards ; an 8-shaped 

 ochreous-tinged discal spot suffusedly outlined with dark fuscous, sometimes almost 

 obsolete ; a terminal series of cloudy blackish marks : cilia whitish-ochreous, barred 

 with fuscous, with a dark fuscous line. Hindwings fuscous-grey, somewhat lighter 

 anteriorly ; a pale postmedian line faintly indicated ; a small dorsal lobe, clothed with 

 ochreous-whitish hairs, but no costal hair-pencil ; cilia whitish, indistinctly barred with 

 grey, with dark grey subbasal line. 



4 specimens; 2 Haleakala, Maui, at 5000 — 6000 feet, in March and April; 

 2 Molokai, at 4500 feet, in September. 



