240 FAUNA HAWAIIENSIS 



anterior and middle pair banded with dark fuscous. Forewings fuscous, more or less 

 mixed with dark fuscous ; first line obscurely pale or almost obsolete, followed by some 

 ochreous and dark fuscous scales ; an 8-shaped discal spot very obscurely indicated ; 

 second line pale or whitish-ochreous, slender, curved outwards from ^ to f : cilia fuscous, 

 paler-mixed, with a dark fuscous line. Hindwings in ^ ochreous- white, more yellowish- 

 tinged dorsally, with moderate dark fuscous fascia along upper half of termen, in % 

 rather dark fuscous, becoming blackish-fuscous posteriorly, with a patch of whitish 

 suffusion in middle of disc ; in ^ with rather long ochreous-whitish dorsal lobe, clothed 

 with long whitish hairs, and a whitish-yellowish costal hair-pencil ; cilia whitish, with dark 

 fuscous subbasal line in $ on upper half of termen, in % throughout. (Plate VI. fig. 21.) 

 4 specimens, Waianae Mts., Oahu, at 1400 feet, in April. Very similar to 

 M. abnormis, yet the $ differs widely in the wholly whitish hairs of the dorsal lobe, and 

 the absence of the black tibial tuft. 



(28) Mestolobes homalopa, sp. nov. 



^%. 16 — 20mm. Head, palpi, and thorax pale greyish-ochreous or whitish- 

 ochreous, sometimes fuscous-sprinkled. Abdomen in ^ fuscous, segmental margins 

 whitish-ochreous, in % darker fuscous. Legs ochreous-whitish, anterior pair sometimes 

 banded with dark fuscous. Forewings pale ochreous, sometimes yellowish-tinged, more 

 or less irrorated with fuscous, in % sometimes suffused with fuscous ; a few scattered 

 dark fuscous scales, but no defined markings : cilia fuscous, paler-mixed. Hindwings 

 fuscous, becoming dark fuscous towards termen ; in <J a moderately long ochreous- 

 whitish dorsal lobe, clothed with long whitish hairs on inner side, and a ridge of erect 

 curled hair-scales along costa towards middle ; cilia fuscous. 



12 specimens, Haleakala, Maui, at 5000 feet, in May. 



Orthomecyna Bull. 



In the hindwings 7 is sometimes connate with 6, and sometimes anastomoses more 

 or less shortly with 8 ; the characters given are otherwise sufficient. The pecten of 

 hairs on the lower median vein is as well-defined as in the Crambidae, whereas in 

 Mestolobes there is no trace of it. 



1. Hindwings clear orange or yellowish 2. 



,, at most greyish-yellowish, or partly yellow-suffused 6. 



2. Cilia of hindwings fuscous {8) epicausta. 



„ „ yellow or orange 3- 



3. Forewings irrorated or suftused with whitish (ij) mesochasma. 



„ not whitish-irrorated 4. 



4. Hindwings suffused with dark fuscous towards costa (j) albicaudata. 



„ not dark fuscous towards costa 5. 



