1909] Dyar: New Species of Insects. 131 



broken white lines; the rest of the wing a little lighter brown 

 and without markings. Beneath light brown, without markings. 

 Expanse, 37 mm. 



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



Type.— No. 12654, U. S. National Museum. 



From the description, this appears nearly allied to Hydrias 

 laudia Druce, from Ecuador. Possibly it is the same species, 

 but a number of the finer markings are not mentioned in Druce's 

 description, while the two localities are rather remote. I there- 

 fore provisionally consider the species distinct. 



Family NOTODONTIDAE. 

 Rifargia phanerostigma, new species. (Fig. 41, No. 12.) 



Head and thorax dark brown, a little intermixed with lighter 

 tints; abdomen brown-gray, the segments lighter at the tips, a 

 yellow lateral tuft at each side at base, the second segment brown 

 at tip. Fore wing dark brown, the basal and terminal areas 

 with a chocolate-brown tint, the middle field more grayish, but 

 dark and nearly uniform. The basal space has a transverse 

 strigose appearance and is limited by the inner line, which is 

 geminate and chocolate-brown filled. Median space rather nar- 

 row, narrower on the internal margin than on the costa, con- 

 taining the elliptical discal mark, which is composed of an outer, 

 broken white ring, faintly bordered within by a narrow brown 

 line, and centered in its lower half by an ocher-yellow dot. 

 Outer line similar to the inner, the terminal space with trans- 

 verse indistinct striation, the subterminal line fine, pale, irregu- 

 lar, broken, forming minute white dots on the veins and yellow- 

 ish dashes between them. A submarginal row of intravenular 

 dots, their outer halves dark brown, their inner, yellow- white. 

 An apical rounded, pure white blotch. Hind wing dark brown 

 with the fringe yellowish white except just beyond anal angle. 

 Expanse, 53 mm. 



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



Type.— No. 12640, U. S. National Museum. 



Only the female is before me, but I think that the generic 

 reference is correct. The species is closely allied to Rifargia 

 occulta Schaus and R. onerosa Schaus ; but neither of these pos- 

 sesses the clear white apical mark on the fore wing, besides other 

 less striking difference. 



