Genera and Species o/TyralidEe. 63 



second followed by a faintly paler line ; both are darker at 

 the costa. Hind wing rather paler, with a broad blackish 

 marginal band, which stops short halfvv^ay from apex. Head, 

 thorax, and abdomen concolorous. Underside the same, but 

 with the apical third almost wholly brown-black. 



Expanse of wings 16 millim. 



One male, Marquesas Islands. 



EuPOCA, gen. nov. 



Wings ample ; fore wing with costa slightly arched, hind 

 margin obliquely curved, showing a very slight bend in the 

 middle ; inner margin strongly fringed with hair-like scales, 

 more or less erect, and forming stronger tufts at the ends of 

 the basal and central fascia?. Labial palpi erect, sloping 

 slightly forward, with appressed scales ; second joint long, 

 third short, acuminate, reaching a little above the vertex ; 

 maxillary erect, short, slender ; tongue spiral ; ocelli present; 

 antennee laminated, pubescent beneath, rather thick ; head 

 hairy behind ; scaling fine and thin, but overlaid towards the 

 base with long hair-like scales. Male with slight anal tuft. 



Type E. cmerea^ Warr. 



Eupoca acu talis ^ sp. n. 



Fore wing more acutely pointed and narrower ; hind mar- 

 gin much more oblique than in E. cinerea ; costa straight, 

 slightly convex only just before apex ; inner margin only 

 three fourths of costal ; scaling iridescent ; surface thickly 

 dusted with a mixture of whitish and mouse-coloured scales ; 

 lines very indistinct ; basal area not darker than ground- 

 colour, bounded by a faintly darker line which runs from the 

 inner margin parallel to the hind margin and is reflexed just 

 below the costa ; the ordinary first line, also parallel to the 

 hind margin, forms the inner boundary of a slightly darker 

 central space, and is similarly recurved below the costa, wiiich 

 it reaches about the middle ; second line, starting from costa 

 at three fourths, is first slightly curved outwards, and then 

 runs parallel to the others and the hind margin to the inner 

 margin some distance before the anal angle ; a faint dark 

 lunular dash at the end of the cell ; fringes cinereous, with 

 their extremities whitish. Hind wing pearly white, with a 

 very faint indication of a subcentral band, the base of the 

 fringes and a central fringe-line fuscous. Head and thorax 

 concolorous with fore wings, abdomen with hind wings. 



Expanse of wings 13 millim. 



