182 
NORTH AMERICAN NEPTICULIDAE 
of hickory and on walnnt and butternut. The larva is pale 
green (almost white Avhen feeding on walnut). Cocoon brownish 
red. 
There are three generations; full grown larvae may be found in 
the middle of June, latter part of July, and in late August and early 
September. 
The purple fore wings and white collar separate this species 
from its nearest allies. 
28. Nepticula apicialbella Chambers 
Neplicula apicialbella Chambers, Can. Ent., v, 127, 1873; Braun, Can. Ent.> 
xlvi, 21, 1914; Dyar’s No. 6185. 
Syn. leucostigma Braun, Journ. Cin. Soc. Nat. Hist., xxi, 88, 1912. 
Tuft ochraceous, collar creamy white. Antennae dark brown, faintly an- 
nulate with a paler shade; eye-caps white. Thorax dark purplish brown. 
Fore wings dark brown, with a faint purple luster. Beyond the middle of the 
wing there is a narrow, ol>lique white fascia, convex outwardly and reaching 
the margin farther from the base on the dorsum. The scales at the extreme 
tip of the wing are white, forming with the whitish apical cilia, a very distinct 
pale patch. The cilia except at the apex as just described, are gray. Hind 
wings and cilia dark gray. Legs shining grayish ocherous, hind femur creamy 
white, hind tarsi dark gray. Abdomen dark purplish above, pale beneath. 
Expanse . — 4 mm. 
Localities . — Kentucky (Chambers) ; Ohio. 
Tlie larvae make upper side serpentine mines on red elm, white 
elm and cork elm (Ulmus fulva, U. americana and U. racemosa). 
The mine (Fig. 43) is brownish in color wdth a conspicuous line 
of fi •ass through the middle. Cocoon reddish brown. 
Three generations; full grown larvae in mid-June, late July and 
in August and September. 
The oblique fascia and white apex distinguish this species from 
all others. 
29. Nepticula tiliella Braun 
Nepticula tiliella Braun, Journ. Cin. Soc. Nat. Hist., xxi, 90, 1912. 
Tuft ochraceous, collar white. Antennae black, eye-caps shining white. 
Thorax black. Fore wings almost black, with a very faint purple luster. 
There is a shining pure white fascia, slightly oblique and a little convex out- 
wardly, at the middle of the wing. Cilia gray on the dorsum, shining white 
from the tornus to the costa. Hind wings and cilia gray. Legs silvery gray, 
tinged with ocher, hind tibiae and tarsi blackish above. Abdomen blackish 
above, silvery gray beneath. 
Expanse. — 3.5 mm. 
Localities. — Ohio ; Kentuck}'. 
