192 WILLIAM T. M. FORBES 



Underside miner on willow, Sali& spp. 



23. L. salicivorella Braun. Color pale grayish, with four costal, and three 

 dorsal, white streaks, and a white basal streak confluent with the upper edge of 

 the first dorsal streak. 7 mm. 



New Jersey. 



Underside miner on willow. 



24. L. deceptusella Chambers. Color golden brown; four costal, and three dorsal, 

 white streaks, and a white basal streak confluent with upper edge of first dorsal; 

 an elongate patch of brown scales in apex. G mm. 



Kentucky. 



25. L. populiella Chambers. Head white; wings pale golden; three white basal 

 streaks, costo-basal, median, and dorso-basal, respectively; four costal, and three 

 dorsal, white streaks, large, broad, and but little oblique. 6-7 mm. 



Ohio; Kentucky. 



An underside miner in leaves of silver-leaved poplar, Populus alba. 

 .26. L. salicifoliella Clemens. Head white; tuft often with brown scales. Fore 

 wings golden or brownish-yellow with white streaks; both streaks and ground 

 color typically dusted with black scales (in some forms, dusting entirely absent). 

 A short, median, basal streak and dorso-basal streak uniting with a dorsal streak 

 at the basal fourth, enclosing a small patch of ground color; two oblique costal 

 streaks, curving backward along the midaie of the wing, and three, posterior, 

 less-oblique, costal streaks; first dorsal streak oblique, curving backward, and 

 usually confluent with the first two costal streaks; a triangular spot at tornus, 

 followed by a curved streak usually uniting with the opposite, costal streak. 

 7-8 mm. 



An underside miner in leaves of poplar and willow. Moths appearing in August 

 usually lack the black dusting. 



27. L. argentinotella Clemens. Wings golden yellow with a white basal streak 

 to one-fourth, five costal streaks, three dorsal streaks before the tornus and one 

 beyond. 6.58 mm. 



An underside miner in leaves of elm. 



28. L. occitanica Frey and Boll. Differs from the preceding only by the absence 

 of the first and last two costal streaks of that species and may not be distinct. 

 Reported only from Texas. An underside miner on elm. 



29. L. auronitens Frey and Boll. Wings brownish golden; a very short basal 

 streak; a long oblique costal streak at one-fourth and an opposite dorsal spot; 

 a pair of triangular streaks in middle of wing whose apices meet; two poste- 

 rior costal, and two dorsal, streaks. 6.5-8 mm. 



Massachusetts ; North Carolina. 



An underside, rather large, much-wrinkled mine on alder. Alnus spp. 



30. L. morrisella Fitch. Tuft dark brown; thorax and fore wing, below the 

 fold, dark brown; remainder of wing golden brown; markings silvery white. A 

 silvery basal streak uniting at one- third with a white dorsal streak; costal 

 streak at one -third; a convex iascia at middle; beyond this, two perpendicular 

 costal streaks, and opposite the first of these a dorsal streak. In the fold between 

 this streak and the fascia, a -velvety black streak. Apical spot large, velvety 

 blacK. 6-7 mm. 



Underside whitish mines on hog peanut, Amphicarpa monoica. 



31. L. uhlerella Fitch. Differs from morrisella by the absence of the silvery 

 basal streak and the less brilliant luster of the white markings. 



Whitish, rather flat mines on underside of leaves of Amorpha fruticosa. 



32. L. robiniella Clemens. Agrees with the two preceding in color and general 

 type of markings; no basal streak; first dorsal streak but faintly indicated; 

 median fascia replaced by opposite oblique streaks. 6-6.5 mm. 



Under or upper side mines on locust, Robinia pseudo-acacia; white silken cocoon 

 within the mine. 



