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PAPERS BY DR. B. CLEMENS. 



small, faint saffron patches beyond it. The hinder-marginal 

 line blackish, cilia with a fulvous hue. Hind-wings rather 

 dark silvery-gray, cilia with a fulvous hue. 



Variation F. 



The first ochreous-saffron band interrupted in the middle, 

 with a broad internal margin of scattered scales, produced 

 behind in the middle ; the second somewhat diffuse, with the 

 irrorated portion of the wing spreading out behind from the 

 produced part of its black margin. 



Variation Gr. 



"With an angiilated line of blackish scales before the first 

 band and an ochreous-saffron patch between its angle and 

 that of the black margin of the first band. 



The larva mines the upper side of the leaves of oaks in 

 July. The head is black, the body pale yellowish, with an 

 ochre-yellowish patch on the dorsum of the eighth segment, a 

 dark vascular line and a few dark subdorsal spots posteriorly. 

 The imago appears early in August. The variations F. and 

 G. were specimens found in the pupa state. 



16. L. argentinotella. Antennae silvery. Front and 

 tuft silvery. Thorax pale reddish-saffron, with a rather 

 short, unmargined, silvery basal streak, with Jive costal 

 streaks and four dorsal streaks of the same hue. The first 

 costal and dorsal streaks unmargined, the first dorsal being 

 near the inner angle of the base, tapering to a point in the 

 middle of the wing from a very broad base ; the first costal 

 streak rather slender and only one-half as long as the first 

 dorsal; the second costal and second dorsal connected about 

 the middle of the wing, and dark-margined toward the base 

 by a line much curved in the middle ; the third costal and 

 third dorsal opposite, and each dark-margined internally ; the 

 fourth dorsal about midway between the fourth and fifth costal 

 streaks; sometimes the fourth costal and dorsal streaks with 

 a few dark internal scales, sometime unmargined. At the 



