132 Zoologica: N. Y. Zoological Society. [I; 4 



Family GEOMETRIDAE. 



Subfamily Sterrhinae. 

 Eois costalis, new species. (Fig. 41, No. 13.) 



Brownish ocher or clay color. Collar and costal margin of 

 fore wings to outer third dull crimson. Fore wings crossed by 

 four rather broad dull crimson slightly waved bands, the fourth 

 submarginal and the narrowest, not attaining the apex. Fringe 

 concolorous with wing, but blackish at anal angle. Hind wing 

 with four broad bands like the fore wing, the first nearly basal, 

 the submarginal one as broad as the others, but narrowing to- 

 ward anal angle. Beneath suffused with crimson, the bands 

 nearly lost. Expanse, 12 mm. The antennae have very long 

 cilia. 



One $ , Hoorie, British Guiana (C. W. Beebe). 



Type.— No. 12670, U. S. National Museum. 



Subfamily Geometrinae. 

 Racheolopha nivetacta Warren. (Fig. 42, No. 14.) 



Female. — Nearly twice the size of the male. Coloration in 

 general similar, but the white fields of both wings broader, the 

 green marginal areas reduced. The white is clearer, more 

 opaque, while the dark strigae are larger and sparser. Abdo- 

 men green above, white below, the dorsal series of tufts brown 

 as in the male. Expanse, 40 mm. 



One 5 , Hoorie, British Guiana (C. W. Beebe). 



The species was described from a single male from French 

 Guiana (Proc. U. S. Nat. Mus., xxx, 425, 1906) . 



Family PYRAIDAE. 

 Subfamily Chrysauginae. 

 Acropteryx opulenta, new species. (Fig. 42, No. 15.) 



Head, thorax green, the patagia tipped with chocolate 

 brown. Fore wing bright green, crossed by two scalloped, 

 broken brown lines. A large brown patch runs along the base 

 of the costa, spreads out to fill the space between the lines down 

 to vein 2 and crosses the outer line for a short space. Inter- 

 spaces between vein 2 and the cell filled in with yellow, both 

 within and without the outer line. Hind wing whitish, the 

 margin narrowly roseate. Expanse, 42 mm. 



One 5 , Hoorie, British Guiana (C. W. Beebe). 



