NO. 1456. NEW GEOMETRW MOTHS— WARREN. 453 



Face and palpi, deep red: vertex and antannte, white; thorax and 

 abdomen green, like wings; the anal half of dorsum tinged with 

 reddish. 



Expanse of wings. — 25 mm. 



Locality. — Tijaca, Brazil; 1 male. 



7y^^.— Cat. No. 9249, H.S.N.M. 



Genus OMOPERA, ne\Ar genus. 



Forewing. — Costa curved; apex blunt, but prominent; hind mar- 

 gin, strongly ellwwed at end of vein 3, concave above and below, the 

 lower half very oblique, running parallel to costa, and of the same 

 length as inner margin, which is about half as long as costa. 



Hindviing. — Small and narrow, semielliptical; the costa convex and 

 curving into the hind margin without forming an apical angle. 



Antennte, male, pubescent; palpi, quite short; middle and hind legs 

 with dense tufts of hair, the latter otherwise aborted; in the hindwing 

 the cell area is puckered and hollowed out beneath; the costal margin 

 beneath is clothed with wisps of hair; veins 2 and 3 are stalked as in 

 PtycJwpoda subvestita Warren and cMcrosata Snellen. 



Type. — Oniopera angulata., new species. 



OMOPERA ANGULATA, new species. 



Fm'ewing. — Olive-ochreous, with dull grayish purple scaling, which 

 forms a large ill-detined cloud along lower half of hind margin from 

 the elbow to anal angle, stretching toward middle of costa, where 

 there are three indistinct spots, indicating origin of inner, median, and 

 outer lines, but only the last is visible in its upper course; from 

 another spot near apex a submarginal line runs to the elbow, and the 

 extreme margin is purplish from the elbow to apex; a dark cell spot 

 in the cloud; fringe olive-ochreous, broadly purplish at the elbow. 



Hindwing. — With two thick ill-defined lines of purplish scales, 

 forming a kind of fascia across middle of wing to inner margin above 

 anal angle; a dark purplish shade along hind margin; fringe 3'ellow. 



Under side of forewing like upper, but paler; the cell spot, outer 

 and su])marginal lines clearer; hindwing with only the apical dark 

 shadings. 



Head, thorax, and dorsum purplish; patagia olive-ochreous; vertex 

 white; tufts of hind legs purplish, of middle legs pale ochreous. 



Expanse of icings. — 20 mm. 



Locality. — St. Jean, Maroni River, French Guiana; 1 male, April, 

 1904. 



Typ)e.—C2it. No. 9250, U.S.N.M. 



