NOVITATES ZoOLOaiCAE XXV. 1918. 109 



Genus Palacotype nov. 



Type : TrischaUs submargiiuUa Roths. 



Proboscis fully developed ; palpi porrect, extending to just beyond the 

 frons, which is smooth ; eyes large, round ; antennae of male with bristles and 

 cilia ; tibiae with all the spurs present. Forewing with the costa arched 

 towards apex, which is rounded, the termen everly curved ; vein 3 from well 

 before angle of cell; 5 absent ; 6. 7, 8, 9, 10, II from cell. Hindwing with 

 veins 3 and 5 absent ; 0, 7 stalked ; 8 from middle of cell. 



NOCTUIDAE. 



Agrotinae, 

 250o. Porosagrotis atricentrica n. sp. 



S. Head and thorax ochreous white tinged with rufous ar.d mixed with 

 some black-brown ; abdomen white ; pectus white. Forewing ochreous white 

 tinged with rufous ar.d irrorated with black-brown, the costal edge blackish 

 except towards base ; antemedial line black, angled outwards in tlie cell and 

 sub median fold and inwards at median nervure and vein 1, bent outwards above 

 inner margin, claviform defined by black, rounded at extremity ; orbicular 

 and reniform large, ochreous white suffused with rufous and defined by black 

 except above, the former rounded, the latter elliptical, some black in the cell 

 before the lower part of former between them and beyond the reniform ; post- 

 medial line black, excurved below costa, then strongly dentate, oblique below 

 vein 4 ; a red-brown ar.d blackish patch on costal area before the subterminal 

 line, which is represented by dentate red-browii ard blackish marks in the 

 interspaces ; a terminal series of black points. Hindwing white. Underside 

 white, the costal area of forewing suffused with rufous. 



Hah. Argentina, Buenos Ayres ( Wilkin.son ), 1 ^ type. Exf. 32 mill. 



290a. Euxoa cjrmograpta n. sp. 



$. Head and thorax grey mi.xed with dark brown ; antennae black ; 

 abdomen grey-white mixed with brown ; pectus and ventral surfaces of abdomen 

 white mixed with some dark brown, the tibiae and tarsi banded black-brown 

 and white, the anal tuft rufous below. Forewing grey tinged with red-brown 

 and irrorated with black ; subbasal line double, black filled in with whitish, 

 waved, from costa to submedian fold ; antemedial line double, black filled in 

 with white at costa, oblique, waved ; claviform slightly defined by black scales 

 at extremity, small ; orbicular and reniform large, with white annuli defined 

 by black, the former round ; medial line rather diffused, black-brown, incurved 

 in the cell, oblique ar.d waved from vein 2 to inner maigin ; pcstnicdial line 

 double, the inner line black, the outer less distinct, filkel in with white at ccsta, 

 bent outwards below costa, then dentate, oblique below vein 4, slight blackish 

 streaks beyond it on the veins and some white points on costa ; a subterminal 

 series of dentate dark marks in the interspaces defined on outer side by white 

 scales ; a lunulate black terminal lino ; cilia whitish tinged with red-brown 

 and with brown lines near base and tips. Hindwing white, the veins and inner 

 and terminal areas tinged with red-brown ; a dark terminal line ; cilia pure 



