( 393 ) 



Srr.i-AMii.Y DKILINIIXAE. 

 31. Neostega flavata spec. nov. 



Foreicinq : briglit pale yellow, sprinkled with ferrnginons, and crossed by 

 ill-defined ferrnginous lines ; an inner, median, and outer, all slightly curved, at 

 even intervals ; within the median a ferruginous cell-spot ; the snbmarginal band is 

 much broader and conspicuous, formed of ferruginous striae, darkened by a brown 

 tinge; fringe like wing; no marginal line; the median shade starts from a dark 

 costal spot. 



Ilindwing : similar, the lines very indefinite. 



Underside without speckling; the median and snbmarginal bands only 

 distinct. 



Head, thorax, and abdomen yellowish varied with ferruginous. 



Expanse of wings : 10 mm. 



1 ? from Degama, Niger E., February 1902 (Dr. Ansorge). 



The species agrees with the type of the genirs in the shortness of the cells 

 and in the anastomosis of the costal and subcostal of hindwing ; but the venation 

 of forewing differs; veins In, 11 are coincident and free throughout; in X.^/iaei- 

 (jiitUitd these are stalked with 7, 8, 9, and anastomose with 12. 



32. Neostega obscurata spec. nov. 



Forewing: fuscous, darker beyond outer line, and with obscure deeper fuscous 

 striae ; first line indistinct, from one-fourth of costa to one-third of inner margin ; 

 ontcr from two-thirds of costa to two-thirds of inner margin, curved below costa, 

 then parallel to margin ; both lines dark fuscous, like the cell-spot ; fringe 

 concolorous. 



Hind icing : with outer line only, straight ; cell-spot distinct. 



Underside paler, browner, without lines, but the border distinctly darker than 

 the basal half of wing. 



Vertex, thorax, and abdomen concolorous with wings ; face and palpi dark 

 lirown ; fillet and base of antennae snow-white. 



Expanse of wings : 30 mm. 



1 c? from Kassai River, Congo Free State. 



Agrees with Neostega in vein Ct of forewing rising from above middle of 

 discocellular, but the coincident veins 10 and 11 are not stalked with 7, 8, 9, but 

 rise just in front of them. The antennae have sessile fascicles of cilia. 



Pi/cnostcga olscwa Warr., which resembles it at first sight, has pectinated 

 antennae. 



Pycnostega gen. nov. 



Forewing : costa straight ; apex bluntly roundeil ; hiudmargin curved. 



Hindwing : ample ; hiudmargin curved ; anal angle rectangular. 



Antennae of c? plumose, the apical fourth sim]ile. Palpi upcurved in front 

 of face, short, not reaching vertex ; tongue and frenulum present ; legs rather 

 short and stout ; hindtibiae with four short spurs. 



Neuration : forewing, cell only two-fifths of wing ; discocellular vertical, 

 curved below ; first median nervulc at two-thirds, second shortly before end ; 

 radials normal; 7,8,9, stalked : ]l> and 11 coincident: hindwing, cell two-fifths 

 of wing ; 7 from before angle of cell ; no radial. 



