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 Wlsm. The most 

 marked difference is the absence of the costal and dorsal basal 

 white patches characteristic of that species. 



Lithocolletis platanoidiella sp. nov. 



Antennae 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 silvery 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. 

 Qucrcus alba L., Qucrcus macrocarpa Michx., Qncrcns platan- 

 aides (Lam.). The larva is of the flat type, and when mature, 

 spins an oval flat silken cocoon. The images appear in August. 

 The larva of the fall brood hibernate in silken-lined chambers. 



This species superficially resembles L. bctlninclla 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. bethit- 

 nella. 



