( 48H) 



]i^<^. Semiothisa subvalida sp. inn-. 



Forewings: very pale ocUreous, with slightly darker ochreoiis snffiisioii ;iuil 

 striae, without any rusty or grey atoms, as in S. debiliata; the lines ocliraivons, not 

 so fine as in that species; the iirst cnrved; the second slightly waved, with the discal 

 ochraceous mark touching it, exactly as in debiliata; the third more obtusely angled 

 on vein and marked with slight dark dots on veins : no submarginal line, but the 

 outer line followed by a faint fascia formed of ochraceous striae arranged in four or 

 five rows ; fringe pale ; marginal dots minute, black. 



fliiuhrings : with antemedian and postmedian lines, the latter with dark dots 

 on veins ; cell-spot rusty. 



Underside paler, with very indistinct markings. Tliorax and abdomen con- 

 colorous ; face and collar tinged with darker. 



E.Kpanse of wings : 20 mm. 



One 3 from Paraguay. 



Superficially extremely like S. dchUkita: besides the difference in the markings, 

 the shape of wing is different; both costa and hindmargin of forewings are straighter, 

 the apex thereby appearing more produced ; the elbow nf hinilwings is mon^ pro- 

 nounced, and the fovea on forewings very small and obscure. 



1^9. Semiothisa trigonata sp. uov. 



Forewings: testaceous ochreous, hardly dusted with darker; the lines brown : 

 first at one-fifth, angled in cell, to inner margin at one-fourth; second before middle, 

 waved, indistinct, absorbing the linear cell-spot; third at two-thirds, oblique hiinin/x 

 to vein 0, and thick, tlience lunulate and parallel to first and second ; beyond it a 

 faint grey line shows through from beneath ; some brownish clouds before apex ; 

 fringe brown, with brown basal line ; the space between veins 6 and 7, from their 

 origin as far as outer line, whitish hyaline, the costa above it paler, so that then- 

 appears a pale costal triangle between lines 2 and 3. 



Ilindwtngs : the same, without basal line ; fringe eoni'iilorous. 



Underside yellow, dusted with fulvous; discal spots and outer lines deep brown; 

 the other lines less expressed ; a white triangle at base of veins 6 and 7, and a white 

 blotch before apex, dusted with brown and preceded by a pale brown ])atch ; hind- 

 wings the same. Head and shoulders, palpi and forelegs, brown-grey ; collar, thorax, 

 and abdomen like wings. 



Expanse of wings : 40 mm. 



One ? from Petropolis. 



lOii. Tephrinopsis semipallida sp. nov. 



Forewinqs : whitish grey, tliii-kly dusted with dark grey atoms ; the costa dark 

 grey; first line at one-third, sinuous, brownish grey; median shade diffuse, dark 

 grey, from middle of inner margin to two-thirds of costa, before which it becomes 

 obsolete ; outer line from three-fourths of inner margin, dark brown, slightly 

 curving towards apex, before which it is recurved finely to costa ; followed by a 

 broad brownisii grey shade ; submarginal line pale, nearly straight : marginal line 

 fine, blackish ; fringe grey ; the area between median shade and onter line is paler 

 than the rest of wing. 



Hindwiiiqs : whitish, dusted with dark grey along inner and hindmargius ; a 



