192 
NORTH AMERICAN NEPTICULIDAE 
45. Nepticula castaneaefoliella Chaml)ers 
Nepticula caslanenefoliella Chambers, Cin. Quart. Journ. Sci., ii, 117, 1S75; 
Dj'ar’s Xo. 61S9. 
Tuft black, collar, e 3 'e-caps and palpi creamj’ white. Thora.x and fore wing 
dark brown, with slight bronz\’ and purple reflections; the tips of the scales are 
somewhat darker, so that under a lens, the wing is slightlj' irrorated especiall,v 
toward the apex. Cilia silvery at the tips. Hind wings grajx Posterior 
tibiae and fore legs, except the femora, dark brown; legs otherwise whitish. 
Abdomen dark above, whitish beneath. 
Expanse. — 4 to 4.5 mm. 
Localities. — Kentucky (Chambers); Ohio; Falls Church, Yir- 
ginia (Heinrich). 
The larvae form very long, much contorted, linear mines (Fig. 
30) on leaves of chestnut {Castanea dentata), measuring but little 
over 1 mm. in width at the end, with a fine central line of frass. 
Larva bright green; cocoon ocherous. Chambers reports it also- 
on white oak. 
46. Nepticula punctulata Braun 
Nepticula punctulata Braun, Ent. News, xxi, 174, 1910. 
Tuft buff, usuallj' becoming brownisli on the vertex; collar buff; ej-e-caps 
pale buff. Fore wings pale grayish buff, each scale tipped with fuscous, giving 
the wing a finely ])ei)i)ered appearance. Cilia pale gra 3 ^ Hind wings pale 
gra>', tinged with buff. Legs and abdomen gra\'. 
Expanse. — 4.5 to 5.5 mm. 
Localities. — California: Dutch Flat, Placer County; Loma 
Linda, San Bernardino County (Pilate); Yosemite Vallejy 
The larvae mine leaves of Ceanothus cuneatus and Rhamnas 
calif ornica. The mine (Fig. 31) is a serpentine track, often bent 
back on itself and indistinct in its early stages on the thick-leaved 
Ceanothus, pale green with lu'oad black line of frass on the 
Rhamnus leaves. Cocoon reddish brown or grayish. 
The mines on Ceanothus from Dutch Flat were collected in 
January, those on Rhamnus from Yosemite in July. 
The species is distinct in the evenly distributed dark dusting. 
47. Nepticula grandisella Chambers 
Nepticula grandisella Chambers, Jourii. Cin. Soc. Nat. Hist., ii, 19:1, 1879; 
liar’s No. 6198. 
“Chiefl}' remarkaljle for its large size for this genus, having an al. ex. of 
over I inch. Face, sordid, straw or sandy yellow, with palpi a little paler; 
ej'e-caps, white; antennae, reddish Ijrown. Bodj^, wings and legs brown. 
Texas.” 
