( 364 ) 



133. Semiothisa quadricaudata spec. nov. 



Vnreiring : palp brownish oibroons, sjjpckled witb brown ; costa at base, the 

 ajiical area, and the lines brown ; basal and onter line very fine ; the basal curved 

 outwards above and below the median vein, tonching below the large fovea; the 

 onter line from three-fifths of costa to three-fifths of inner margin irregularly 

 waved ; a broad dift'iise median shade from near middle of costa to before middle 

 of inner margin ; a straight brown shade from two-thirds of costa to just before 

 anal angle ; a whitish apical streak above vein 7, speckled with ochreous grey ; a 

 slightly hyaline pale s]iot above base of vein fi ; marginal line dark brown ; fringe 

 ochreous. 



JliiifhriiK/ : with tlie two thick shades at one-third and two-thirds, and the 

 onter line fine and brown, dentate-lnnulate. 



Underside bright oehraceous speckled with brown ; with the two thick lines 

 bright brown on each wing, and brown cell-spots ; the two white markings on 

 forewing consj)icuons. 



Head, palj)i, and forelegs dark browu ; shoulders and base of patagia gre)-- 

 brown ; thorax and abdomen like wings. 



Expanse of wings : 40 mm. 



1 (J from Tuis, Costa Rica. 



Distinguished from all the other similarly coloured species by the absence of 

 an excision below apex of forewing, whicii is bluntly produced and falcate. 

 Antennae shortly snbserrate and pubescent. 



134. Semiothisa salsa spec. nov. 



Fm-ewiiiy : chalk-white, thickly and coarsely speckled with dark brown ; the 

 veins towards hindmargin brown ; costa bright yellow between thg brown spots ; 

 lines all brighter brown than the speckling, waved, thickened on costa ; first 

 from one-fifth of costa to one-fourth of inner margin, outcurved above and below 

 median vein ; second from two-fifths of costa to middle of inner margin, incurved 

 on each side of median, followed by a thick brown cell-spot ; outer line from 

 two-thirds of costa to three-fourths of inner margin, thickly Innulate-dentate, 

 incurved on snbmedian fold, followed on costa by a brown Vilotch reaching 

 nearly to apex, from which an irregular brown fascia descends to anal angle, 

 touching outer line at middle and externally dentate on the veins ; fringe brown 

 like the lines. 



lUiKhriiiij : similar, but whiter; the first line basal; the outer fascia starting 

 from apex. 



Underside like ujjper, but the ground-colour buff, except a white blotch running 

 inwarils from apex of forewing, and the inner margin of the same. 



Palpi butt' below, brown above; face brown with the extreme base white; 

 vertex and antennae brown ; shoulders dark grey ; patagia and tips of shoulders 

 pale grey; abdomen white, blotched and speckled witli brown, buff below and at 

 sides ; legs bufl' mottled with brown. 



Expanse of wings : 35 mm. 



1 6 from C'ananche, C'nndinamarca, Colombia, August 19iJ3 (de Mathan). 



Excision of forewing shallow ; hindwing angled at middle. 



