16 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



than streaked. There is a bright though pale golden basal streak just 

 within the costal margin. 



Alar e.i'panse. — % inch (about 10 mm.). Kentucky, in oak woods, 

 in flune and Juh^ . 



The above is Chambers's original description. The species is un- 

 known to me except from a single specimen in poor condition in 

 Museum of Comparativ^e Zoology, received from Cliambers. This 

 specimen is glued on a card point and is lal^eled ^1. vlsaUeUa; it 

 undoubtedly represents the present species, which should be easily 

 recognized from the description, when met with. 



ARGYRESTHIA SUBRETICULATA Walsingham. 



Plate IV, fig. 12. 



Argiireiithia suhreticuJata Walsingham, Trans. Am. Ent. Soe. Phila., X, 1882, 

 p. 173.— Dyar, Bull. 52, U. S. Nat. Mus., 1903, No. 6470. 



Labial palpi golden- white. Face and head silvery-white. Antennae 

 annulated with light golden-brown. Thorax white. The dorsal two- 

 thirds of the forewings pure immaculate white from base to shortly 

 before apex. The costal third from base to apex light golden-brown, 

 in the apical part somewhat darker and reticulated with white. The 

 dark part of the wing broadens slightly and gradually toward apex 

 and reaches to the apical third of the dorsal cilia. A.round the apical 

 edge is a narrow dark bronze line. Apical cilia golden, dorsal cilia 

 white. Hindwings light gray. Forewings with veins 7 and 8 stalked. 



Aim' expanse. — 9 mm. 



Habitat. — Pennsylvania. 



The type of this very distinct species is in the collection of the 

 Philadelphia Academy of Natural Sciences. It is easily distinguished 

 from all descri))ed American species of the genus by the large immacu- 

 late dorsal part of the forewings. 



ARGYRESTHIA DELETELLA Zeller. 



Plate V, fig. 1. 



Argi/resthia deletella Zeller, Verb. Zool. bot. Gesell. Wien, XXIII, 1873, p. 305.— 

 Chambers, Bull. U. S. Geol. Surv., IV, 1878, p. 130.— Dyar, Bull. 52, U. S. 

 Nat. Mus., 1903, No. 6463. 



Labial palpi and face golden-white. Head white. Antennje with 

 black annulations. Thorax light golden yellow. Forewings whitish 

 yellow, darker on the costal and apical parts than below the fold and 

 irregularly sprinkled with small indistinct brownish transverse streaks. 

 On the middle of the dorsal edge is a poorly defined brown transverse 

 marking, crossing the light dorsal part and reaching beyond the fold. 

 Apical cilia brownish with white base; dorsal cilia light ocherous. 



