106 ENTOMOLOGICAL NEWS. [March, ’08 © 
transparent web, the upper epidermis, as is usual, being thrown 
into a longitudinal fold. 
This species is very near to umbellulariae Wism. The most 
marked difference is the absence of the costal and dorsal basal 
white patches characteristic of that species. 
Lithocolletis platanoidiella sp. nov. 
Antenne whitish, banded with brown above. Palpi shining white. 
Face shining white, with a slight golden lustre. Tuft golden. Thorax 
and forewings deep shining ocherous. Extreme edge of the costa to- 
ward the base black. The first costal streak at the basal fourth, short, 
oblique and outwardly dark margined. The second costal streak, at the 
middle of the wing length, is also oblique, and its apex meets that of 
the longer corresponding dorsal streak, which begins at the middle of 
the dorsal margin, somewhat nearer the base than the costal streak. 
There is thus formed an interrupted, angulated white fascia, of which 
the external dark dusting is continuous, and is prolonged backward to 
the space between the third costal and the second dorsal streaks. These 
latter streaks are placed opposite to each other, the costal at the apical 
third, the dorsal at the tornus, and both are dark margined behind. 
Fourth costal streak somewhat oblique, pointing forward, and dark 
margined behind by a few black scales. Apical portion white, dusted 
with black scales. This dusted portion forms an almost rectangular 
area. At the base of the costal cilia, but not extending through them, 
and anterior to the dusted apex, is a small white streak. Marginal line 
in the cilia brown. Cilia ocherous around the apex, becoming gray to- 
ward the tornus. Alar expanse 6.5-8 mm. Hindwings gray. Cilia gray, 
tinged with reddish. Abdomen gray above, shining silyery ocherous 
beneath. Anal tuft ocherous. Legs. Front legs dark brown above, with 
a narrow white stripe beneath. Tarsi white at their bases. Middle and 
hind legs whitish ocherous, their tarsi tipped with black. 
I have bred this species at Cincinnati, O., from blotch mines 
on the upper surface of leaves of several species of oak, viz. 
Quercus alba L., Quercus macrocarpa Michx., Quercus platan- 
oides (Lam.). ‘The larva is of the flat type, and when mature, 
spins an oval flat silken cocoon. The imagos appear in August. 
The larvze of the fall brood hibernate in silken-lined chambers. 
This species superficially resembles L. bethunella Cham., from 
which it can be distinguished by the absence of the dorsal streak 
at the basal fourth and by the presence of two costal streaks 
beyond the fascia, there being but one such streak in L. bethu- 
nella. 
