676 NOCTUIDJE. 



round ; antennae of male somewhat laminate and almost simple ; thorax clothed 

 almost entirely with scales, the prothorax without crest, the metathorax with 

 depressed crest; tibiae smoothly scaled ; abdomen without crests. Fore wins 

 rather narrow, the apex rounded, the termen evenly curved and not crenulate: 

 veins 3 and 5 from near angle of cell ; 6 from below upper angle ; 9 from 10 

 anastomosing with 8 to form a longitudinally narrow areole ; 11 from cell. 

 Hind wing with veins 3, 4 stalked ; 5 obsolescent from just below middle of 

 discocellulars ; 6, 7 from upper angle; 8 anastomosing with the cell to near 

 middle. 



Sect. I. Frons with the plate at middle long and trilobate at tip, the phtte 

 below frons trilobate. 



6021. Grseperia tripartita. 



Tomacontia tripartita, Smith, Trans. Am. Ent. Soc. xxix. p. 210 (1903). ' 

 Tornacontia mediatrix, Dya-r, Proc. Ent. Soc. Wash. vi. p. 62 (1904). 



Head and thorax brown mixed with some black and white, the 

 palpi white except at tips ; thorax white with black bars at sides of 

 metathorax ; tore and mid tiMae and the tarsi brown ringed with 

 white; abdomen white dorsally tinged with brown, ventrally with 

 black. Fore wing creamy white with large dark patch on inner 

 area beyond middle ; the basal area with some brownish irroration ; 

 subbasal line represented by slight dark points on costa and in cell ; 

 antemedial line very indistinct, double, curved ; orbicular a hlack 

 point, the reniform defined by black, hoop-shaped, open below, some 

 blue-grey on its outer edge ; a small dark spot at middle of costa 

 and a sinuous black line from cell to inner margin with a brown 





Fig. 190. — Grceperi a tripartita, <f . \. 



band irrorated with white beyond it ; postmedial line represented 

 by a small dark spot on costa, then almost obsolete, below vein 1 

 bent inwards to lower angle of cell, then forming a sinuous black- 

 line to inner margin with blue-grey suffusion beyond it ; sub- 

 terminal line only defined by slight grey suffusion on inner side. 

 excurved below vein 7 and at middle, then incurved ; a grey mark 

 at apex ; a terminal series of black stria? ; cilia white with dark- 

 patches at apex, middle, and tornus, and interrupted dark lint 

 through them. Hind wing white, the veins and terminal hall 

 faintly tinged with brown ; a fine brown terminal line : cilia white 

 brown at base towards apex ; the underside white with faint browr 

 postmedial spot below costa. 



Hob. U.S.A., Arizona, Huachuca Mts. (Oslar), 3 J , 2 $ cotypc> 

 mediatrix, Cochise- Co., Wilgus. Exp. 26 millim. 



