44 Mr. W. Scliaus on 



similar, large, oval, slig-litly oblique, crossed by a grey-brown 

 shade ; a blackish streak at base of inner margin, surmounted 

 by an outwardly oblique dark shade ; a dark brown spot 

 medially on costa ; a geminate dark line from reniform to 

 inner margin, filled in with white; a fine postmedial brown 

 line oblique from costa, angled at vein 6, then nearly straight 

 to inner margin ; above angle of postmedial a black-brown 

 shade to costa, and beyond it from 3 to 6 some velvety spots, 

 the longest between 4 and 5 ; a subterminal whitish shade ; 

 the outer margin darker grey ; a terminal brown line ; fringe 

 grey^ spotted with fuscous at veins. Hind wings white ; the 

 costal margin and apex fuscous, narrowing towards anal 

 angle ; a dark spot on discocellular. 



Expanse, <? 28 mm. 



The female has the medial space irrorated with dark grey ; 

 the postmedial line of hind wings below showing above, and 

 the wings more broadly shaded with fuscous. 



Expanse 33 mm. 



Hah. Cachi, Juan Vinas. • 



Allied to M. niveiplaga, Schs. 



Ogdoconta pulverulenta, sp. n» 



Head, collar, thorax, and fore wings lilacine brown, thickly 

 irrorated with lilacine. Abdomen and hind wings fuscous 

 brown. Fore wings : the lines dark brown, only faintly 

 indicated on costal margin ; the veins dark brown from ante- 

 medial to subterminal line ; the anteniedial nearly straight ; 

 the orbicular round, linear ; an oval linear spot below orbi- 

 cular ; the reniform space large, inwardly limited by a brown 

 line, outwardly by the postmedial ; the veins on reniform 

 space not dark ; tlie subterminal heavily marked, curved 

 below costa and parallel to postmedial, followed by a brown 

 shade outwardly dentate on veins, with clusters of lilacine 

 scales between them ; a terminal dark line, inwardly shaded 

 with lilacine. 



Expanse 30 mm. 



Hab. Juan Vinas. 



Allied to 0. cymographa, Hmpsn. 



Ogdoconta pulvilinea, sp. n. 



Head, collar, and thorax brown, irrorated with lilacine. 

 Abdomen greyish. Fore wings silky grey-brown, irrorated 

 with lilacine on costa and near the lines, which consist of 

 lilacine scales and are very fine ; the basal line outwardly 

 oblique from costa* the autemedial lunular, straight; the 



