206 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxiii. 



Habitat. — United States (probably Washington City) . Pupa in gall 

 of Phylloxera on Carya alba, October, 1882, issued May 12, 1883. 

 Unique. This species is most nearly allied to quisquiliella Zeller. 



CAT-ACRYPSIS," new genus. 



Type of the genus. — Oatacrypsis nucella Walsingham. 



Antennse without a notch in the male; basal joint with pecten, 

 slightly dilated and curved; not ciliate, slightly dentate on the 

 outer half. 



Maxillary palpi moderate. 



Labial palpi somewhat recurved, reaching above the vertex. 



Haustellum clothed. 



Head and thorax smooth. 



Forewings narrow at the base, widening outward. 



Neuration 12 veins; 7 and 8 stalked, 7 to costa; 3 and 4 connate, 

 or closely approximate. 



Hindwings rather broadly ovate, at least as broad as the fore- 

 wings ; flexus somewhat angular. 



Neuration 8 veins; 3 and 4 stalked, 5 connate, with or out of 

 (3+4); 6 and 7 separate, nearly parallel. 



Abdomen somewhat flattened. 



Legs, hind tibiae hairy, tarsi smooth. 



Closely allied to Holcocera Clemens, but without the notch in the 

 antennse of the male. 



CATACRYPSIS NUCELLA, new species. 



Antennse brownish fuscous; basal joint yellowish brown. 



Palpi yellowish brown, shaded with brownish fuscous externally. 



Head, and thorax yellowish brown. 



Forewings, male, yellowish brown, more or less suffused with 

 purplish fuscous, especially along the costa and on the outer portion 

 of the wing, an outwardly -bowed transverse shade of the same indi- 

 cated at one-third from the base ; at the end of the cell is a redupli- 

 cated fuscous spot; cilia pale j^ellowish brown; female with the 

 fuscous shading having a purplish tinge, and being very much thicker 

 and more generalh^ distributed than in the male (in some male 

 specimens the suffusion is almost entirely absent), the basal third of 

 the wing and a patch at the lower extremity of the cell alone exhibit- 

 ing the paler ground color. 



Alar expanse. — 16-18 mm. 



Hindwings pale brownish gray; cilia yellowish brown. 



Abdomen and legs pale brownish ochreous. 



Type.— Msile, No. 30646; female. No. 30647, Mus. Walsingham; 

 paratypes, male and female. Cat. No. 10670, U.S.N.M. 



a From the Greek word KaraKpvipis, signifying occultation. 



