310 WILLIAM T. M. FORBES 



2. VALENTINIA Walsingham 

 (Holcoccra auct., not Clemens; Auximobasis Meyrick, in part) 



Male antenna; in our species deeply notched at base, scape broad, with a weak 

 pecten. Fore wing normal, with ML and M 3 separate; hind wing with M 2 and M 3 

 stalked; nearly as wide as fore wing, with fringe rather wider than membrane. 



1. V. glanduella Riley (The acorn moth). Light gray, more or less powdery 

 and mottled; antemedial fascia moderately angled out on Cu, the following blackish 

 shade broken there, so that there appears to be an extension outward of the ante- 

 medial line between its two halves. A blackish dash toward base below fold; erect 

 costal and dorsal bars just beyond the distinct small black discal dots, and fairly 

 defined on inner side. Margins more or less edged with blackish at apex; first 

 discal dot also distinct in light specimens. Hind wing much yellower, olive gray, 

 15-25 mm. 



July. Larva in acorns, apparently sometimes a scavenger after the acorn weevil. 

 Distribution general. New York: Ithaca. 



2. V. quaintancella Dietz. Much smaller than V. glandulella; hind wings nar- 

 rower, fringes twice as wide as membrane. Duller, brownish, more evenly powdery ; 

 antemedial line followed by a strong continuous angulate dark shade, the middle 

 part formed of the large diffuse first discal dot; outer discal dots smaller and well 

 marked, the outer markings obscure. Moth resembling a Pigritia. 10-14 mm. 



Larva in mummy apples. 

 Distribution uncertain. 



3. HOLCOCERA Clemens (restricted) 



Similar to Valentinia, except as noted in key. The notch varying in develop- 

 ment and n&t always present. 

 The following key is incomplete. 



Key to the species 

 1. Ground white, marked with black. 



2. A complete heavy black antemedial band including first discal dot. 



3. confluentella. 

 2. Antemedial band separated from orbicular; or band lighter brown. 



3. No black powdering; a distinct dark streak on R and no antemedial band. 



17. melanostriatetta. 



3. Heavily black-powdered; antemedial band present; dash, if present, 

 short, clean-cut, and confined to antemedial region. 



4. All black and white; black dashes conspicuous 13. elyella 



4. With brown base of costa and antemedial shade, or suffused with gray. 



7. "busckiella. 

 1. Ground luteous; notch moderate. 



2. With strong, complex, and contrasting marks 6. chalcofrontella. 



2. Nearly evenly powdered 9. gibbociliella. 



1. Ground reddish buff 10. villella. 



1. Ground gray. 



2. Male antennae with deep notch; cilia as long as width of shaft. 



3. Wing-scales not white-tipped 1. dives. 



3. Scales white-tipped 2. aphidiella. 



2. Male antennae with moderate notch; cilia half as long as width of shaft. 

 3. Larva on apple; moth immaculate except for three discal dots. 



8. maligemmella. 



3. Larva on Rhus ; moth with marked mottling 6c. fwmereUa,. 



3. Larva on chestnut; moth dark gray, but with ground contrasting luteous 



on basal third and here and there outwardly 6a. minorella. 



3. (H. quisquiliella also belongs in this group.) 



