198 William T. M. Forbes 



Blotch mines on upper side of leaves of oak, especially on Qwercus alba, Q. macro- 

 carpa, and Q. bicolor. 



58. L. cervina Walsingham. Distinguished from the preceding by the pale ground 

 color of wings, their coppery luster toward apex, and the indistinct markings. 6 mm. 



New York. 



59. L. fletcherella Braun. Fore wings reddish ocherous; a pair of costal and 

 dorsal streaks at one -third, the dorsal one long, oblique, curved, with its pointed 

 apex directed toward apex of costal streak; a median, angulated fascia; a pair of 

 opposite streaks at two-thirds; between these and a white streak before apex, 

 in middle of wing, a white spot. 8.5-9 mm. 



Ottawa, Canada. 



Blotch mines on white oak. 



60. L. arcuella Braun. Fore wing reddish orange with markings shining white; 

 first costal streak at one-third broader than long; first dorsal streak nearly 

 perpendicular, rectangular; median angulated fascia, with dark margin not pro- 

 duced at angle; costal streak at two-thirds strongly curved; an opposite dorsal 

 streak; a curved costal streak enclosing apex; apex dusted with blackish-brown 

 scales. 10 mm. 



Virginia. 



61. L. betulivora Walsingham. Wings pale reddish ocherous and markings 

 dull white, with faint margins; markings as in preceding, but streaks at two- 

 thirds very indistinct, and dusted apex not enclosed by a white streak. 7 mm. 



North Carolina. 



Small, round, blotch mines on leaves of birch. 



62. L. bethunella Chambers. Fore wing reddish orange; markings as in two 

 preceding species, except that first pair of streaks are longer and the costal one 

 of the pair is decidedly oblique; the external dark dusting of the fascia produced 

 at the angle to the space between the streaks, at two- thirds; apical dusting pre- 

 ceded by a white spot. Tarsi white. 6.5-7.5 mm. 



Blotch mines on leaves of various species of oak. 



63. L. picturatella Braun. Distinguished from the preceding by the conspicuous, 

 black spots near the ends of the tarsal segments. 6.5-7 mm. 



Connecticut; New York; New Jersey. 



Brownish blotch mines on upper side of leaves of bayberry, Hyriea carolinensis. 



64. L. fasciella Walsingham. Fore wings reddish orange; a median, very 

 obtusely angulated fascia, its external, dark dusting being produced backward into 

 the apical dusting. No costal or dorsal streaks. 6-7 mm. 



Ohio and Kentucky. 



Oval blotch mines on leaves of various species of oaks. 



65. L. castaneaeella Chambers. Fore wings reddish orange; a small, white, 

 costal spot at one-third; a median fascia very obtusely angled, its dustings extend- 

 ing backward to the costal streak at two-thirds; opposite this streak, a faint 

 dorsal streak; a small, white streak before dusted apex; dusting behind fascia 

 and in apex sometimes almost entirely lacking. 6-7.5 mm. 



Oval, blotch mine on chestnut and oak. 



66. L. guttifinitella Clemens. Reddish orange; two straight, or nearly straight, 

 fascise, at one-third and one -half, respectively; a costal spot at two-thirds and 

 opposite it, a rather oblique, dorsal streak; apical dusting black on a white 

 ground and extended to tornus; a white streak along upper edge of dusting near 

 apex. 7 mm. 



Mine a broad, tortuous tract, on poison ivy, Rhus toxicodendron. 



67. L. obstrictella Clemens. Reddish brown; two, nearly straight, silvery fasciae, 

 the second nearly perpendicular, opposite costal and dorsal streaks at two-thirds, 



