1 26 Transactions. — Zoology. 



Forewings cleft to J, segments moderately broad, obliquely truncate ; with 

 10 veins (4, 6) ; 2 from before posterior third of cell, 3 and 4 closely 

 approximated at base, 6 and 7 stalked, 6 to costa, 10 free. Hindwings with 

 segments moderate, upper two obliquely truncate ; with 5 veins (1, 2, 2) ; 

 2 from before angle of cell, 3 from angle, 4 apparently shortly auastomos- 

 ing with 5 in middle : cilia without black scales. 



Distinguished from Platyptilia by the 5 -veined hindwings, and the 

 origin of vein 2 of tbe forewings before posterior third of cell ; also by tbe 

 absence of black scales in the cilia of tbe lower margin of hindwings. Well 

 represented in Europe and North America, and probably elsewhere. 

 la. Costa posteriorly dark fuscous. 



2a. Forewings with a whitish line before hindmargin . . . . . . 8. eharadrias. 



2b. „ without whitish line . . . . . . . . 9. lithoxestus. 



lb. Costa posteriorly not dark fuscous . . . . . . . . . . 7. orites. 



7. Mimas, orites, n. sp. 



Male. — 21 mm. Head and thorax pale ochreous, mixed with white. 

 Palpi pale ochreous, above white, very long. Antennae fuscous. Abdomen 

 brownish-ochreous, with dark fuscous dots on edge of segments. Legs 

 whitish, apex of spurs dark fuscous, spurs short. Forewings light greyish - 

 ochreous, irregularly strewn with whitish, and with some black scales 

 tending to accumulate on veins ; costa obscurely spotted with blackish 

 towards base ; a distinct black dot in disc at ^, and another before and 

 below base of cleft : cilia pale greyish-ochreous, on hindmargin with an 

 interrupted black basal line. Hindwings and cilia light grey. 



The palpi are much longer in this species than in the two following. 



One specimen taken near Clinton by Mr. G. F. Mathew, who states that 

 it frequented the tussock-grass, and fell down to the roots when disturbed ; 

 it is therefore probably often overlooked. 



8. Mimas, eharadrias, n. sp. 



Male, female. — 16-20 mm. Head, palpi, thorax, and abdomen whitish- 

 ochreous. Antennae fuscous. Legs fuscous-whitish, internally dark fus- 

 cous. Forewings light fuscous, more or less suffused with whitish-ochreous 

 posteriorly and towards inner margin, suffused with whitish along sub- 

 median fold (broadly posteriorly) and on a costal spot above base of cleft ; 

 costa suffused with dark fuscous, anteriorly obscurely spotted with whitish ; 

 a small blackish spot before cleft, in female larger and touching cleft ; in 

 female a suffused blackish triangular subapical patch, terminated by a 

 whitish line a little before hindmargin ; in male the whitish line broader 

 and suffused into hindmargin, but blackish patch wholly absent : cilia 

 whitish-fuscous, within cleft and on hindmargin of first segment white, 

 with a dark fuscous line from middle of first segment to anal angle, on 

 costa dark fuscous. Hindwings and cilia fuscous. 



