278 AMERICAN MICRO-LEPIDOPTERA. 



streaks, all black-margined internally except the first, which is very oblique and 

 continued along the costa to the base of the wing. All the costal streaks are 

 short except the first. On the inner margin are two conspicuous silvery dorsal 

 streaks, dark-margined internally, the first very large, and placed near the mid- 

 dle of the inner margin, the second opposite the third costal streak. At the tip 

 is a small round black spot, placed above the middle of the wing. Cilia silvery 

 gray tinted with saffron. Hindwings grayish fuscous; cilia paler." 



The above is a reprint of Clemens' description. Although 

 Clemens makes no mention of it in his description, there is a very 

 distinct black hook in the cilia above the apical spot. Alar ex- 

 panse 7.5-8 mm. 



The larva mines the underside of oak leaves, forming a tentiform 

 mine, of which the loosened epidermis is slightly wrinkled at 

 maturity. The pupa is suspended in a slight web of silk. 



Lithocolletis leucothorax Walsingham. 



Plate XXI, Fig. 2. 

 Lithocolletis leucothorax Walsingham, Proc. U. S. Nat. Mus., xxxiii, 223, 1907. 



"Antennae pale saffron. Palpi white. Head pale saffron ; face white. 



" Forewings pale saffron, the extreme costa whitish from the base, with two 

 very oblique, shining whitish costal streaks tending outward, the first at the 

 middle, the second beyond it, and two much shorter streaks in the costal cilia 

 pointing inward all anteriorly dark margined ; on the dorsum are three very 

 conspicuous, broad, white streaks, tending obliquely outward, the first and sec- 

 ond before the middle, the third beyond it these are all also anteriorly mar- 

 gined with ferruginous, the ferruginous shades bent outward about the middle 

 of the wing giving them an angulated appearance; cilia shining, saffron, a small 

 blackish apical dot and a dark line running from it through the cilia toward the 

 tornus. Alar expanse 8.5 mm. 



"Hindwings whitish gray; cilia grayish. Abdomen tinged with saffron ; anal 

 tuft grayish. Hind tibiae yellowish white, very faintly spotted." 



Described by Lord Walsingham from a specimen collected by 

 Mr. A. Koebele, in the Santa Cruz Mountains, California. Mr. 

 W. D. Kearfott has this species from Colfax, Placer County, Cali- 

 fornia, May l-10th (A. H. Vachell, collector). 



Lithocolletis bataviella sp. nov. 



Plate XXI, Fig. 3. 



Antennae whitish, banded above with dark gray. Face and palpi white. Tuft 

 white and gray intermixed. 



Thorax white, dusted with gray scales. Forewings white ; the markings con- 

 sisting of darker angulated fasciae formed by gray-tipped whitish scales, with a 

 faint golden brown lustre at their bases. At the base of the costa, is a patch of 

 these scales. Within the basal fourth is an angulated fascia, sometimes consist- 

 ing only of the line of black scales which forms its outer border, and sometimes 



