( ^'1 ) 



Anteunae of S pectinated, of ? with the joints angnlatod and ending iu a tine 

 bristle. Fovea of forcwings generally largely developed. 



Neuration : lower radial of forewings from slightly ahove, or from, the centre 

 of discocelhilars ; veins 10 and 11 coincident. 



Type : Steixdcidiu quisquiliaria Gnen. 



15S. Stenalcidia diflferens sp. nov. 



Forewings : whitish, tinged with grey, and dusted with olive-grey scales ; the 

 lines blackish, mixed with olive-fnscous scales ; first line near base, distinctly 

 double, bent below costa and obli([ue inwards ; second line before middle, parallel to 

 first and approximating to it on inner margin ; both marked with black spots on 

 the median and snbmedian veins ; outer line at two-thirds, dentate, the teeth black 

 on all the veins, followed hj an olive dentate shade slightly interrupted above 

 middle ; submarginal line pale, very wavy, preceded and followed by olive-fnscous 

 shades containing darker wedge-shaped marks between the veins ; marginal spots 

 large, black ; fringe grey ; cell-spot crossed by middle line. 



Hind wings : with straight antemedian line ; the rest as in forewings. 



Underside dull whitish, tinged with Inteous ; the margins dull fuscous, preceded 

 by a pale luteous fascia ; cell-spots dark ; costa of forewings olive-ochreous, with 

 dark spots at the rise of the lines. Head, thorax, and abdnmen like wings ; the 

 abdomen banded with dark grey. 



Expanse of wings : 30 mm. 



One c?, three ? S, from Paraguay (Dr. Bohls) ; one S, smaller, from La Plata. 



The ? has the lines all much finer black, scarcely dentate, and the ground-colour 

 is much more varied with ochreous yellow ; but the underside is the same as in 

 the cj. This diiference iu the distinctness of the lines and in ground-colour exists 

 also in S. cinclica Schaus from Sao Paulo ; but in that species the ground-colour is 

 purer white, and the underside has both the middle and outer lines expressed. 

 Besides, iu the present species the lower radial rises from the centre of discocellnlar; 

 in cindica slightly but visibly above it. 



159. Stenalcidia farinosa sp. nov. 



Forewings : greyish ochreous, dusted with darker, and tinged in places with 

 olive and pale ferruginous, the whole wing having a mealy appearance; costa dotted 

 with black strigae, and with larger spots at the origin of the lines: the fir.'^t and 

 second marked only by faintly darker scales on the veins; outer line minutely 

 denticulate and followed by a broader dentate rufous shade; submarginal line paler, 

 dentate, with olive-ochreous shading on both sides; a row of dark marginal dashes 

 before hiudmargin between the veins, as in quisquiliaria Gnen.; fringe coucolorous; 

 cell-spot hardly marked. 



Hindwings: with fine dark curved antemedian line and dark cell-spot: the rest 

 as in forewings but more distinct. 



Underside dull cinereous; the cell-spots plain on both wings; costa of forewings 

 ochreous with black markings, as in quisquiliaria. Head, thorax, and abdomen like 

 wings. 



Expanse of wings : 32 mm. 



One ? from Cucuta, Venezuela. 



Differs from quisquiliaria. m the outer line being mnch less oblique. 



