Lepidoptera of New York and Neighboring States 87 



5. Nepticula trinotata Braim. Txift ocherous, eye -caps whitish. Fore wings with 

 deep blue reflections in the basal third, velvety back beyond, and somewhat irro- 

 rated in the apical third, the scales here having pale bluish iridescent bases. At 

 the basal third on the costa is a white spot of variable size, faintly tinted with 

 lilac in some lights. At the apical third there is a costal and an opposite dorsal 

 spot, each shining white and larger than the spot at the basal third. 4.5 to 5 mm. 

 Ohio. 



The larvae form blotch mines on Carya oordiformis and occasionally on 0. ovata 

 The mine is at first an extremely narrow, linear tract, expanding into a 



broader tract, which, in turn, becomes a blotch. 



There are two generations a year, the mines of the first appearing during the 



early part of July and those of the second generation, at the beginning of 



September. 



6. Nepticula bifasciella Clemens. Tuft ochraceous; eye-caps shining, cream color. 

 Thorax and base of fore wings to the first fascia dark purple; beyond the first 

 fascia, wings dark brown with bronzy reflections ; the fasciae silvery or golden 

 according to the light, the first fascia at one-third, the second at two-thirds of the 

 wing length. 4 to 4.5 mm. 



The larva is a miner in leaves of wild cherry (Primus serotina) , and occasionally 

 on wild plum (Prunus americana) . The mine is much contorted, especially at 

 first, often, by confluence, forming a blotch ; later distinct. The leaf of wild 

 cherry is discolored and reddish around the mine. 



This species is one of the earliest to appear in the spring, the larvae become 

 full-grown by the middle of May; later generations appear in June and July and 

 in September. 



7. Nepticula intermedia Braun. Head black; eye-caps silvery white. Thorax 

 bronzy, base of fore w T ing plum-purple, followed by a shining silvery or golden 

 fascia. Beyond this fascia wing dark brown, with but faint bronze reflections. 

 A second silvery or golden fascia crossing the wing at two-thirds. 3 to 3.5 mm. 



Ohio ; Kentucky. 



This species makes serpentine mines on leaves of sumac {Rhus spp. ). Usually 

 there are but two generations a year, the larvae maturing in July usually over- 

 wintering, but occasionally a third generation appears. 



8. nepticula rhamnicola Braun. Tuft ocherous in the summer generation, black 

 in the overwintering generation. Thorax creamy buff, patagia dark brown. Fore 

 wings brown, the tips of the scales blackish. At the basal third of the wing 

 a cream-colored fascia with its edges often indented by dark scales. At two- 

 thirds of the wing length a more shining silvery fascia. 4.5 to 5.5 mm. 



Ohio. 



The larv£e are found in the leaves of Rhamnus lanceolata; the mine is at first 

 linear, contorted, and on lower surface; later it crosses to the upper side where 

 it finally becomes a blotch. There are three generations; the mines are most 

 abundant in October. 



9. Nepticula cerea Braun. Head buff; eye-caps a little paler. Thorax and 

 base of fore wings to just beyond one-third, creamy buff. From the base a few 

 fuscous scales extending along the costa to the middle of the pale area, where 

 they join a small, triangular, fuscous spot which is sometimes faintly connected 

 with the dorsum by a few scattered fuscous scales. Following the pale basal 

 area, a broad dark-brown band across the wing, succeeded by a narrower, silvery 

 white fascia. The apical third of the wing dark brown, except for the pure 

 white cilia at the apex. 3.5 mm. 



Ohio; Pennsylvania. 



10. Nepticula rhoifoliella Braun. Head black; eye -caps silvery white. Thorax 

 blackish purple. Fore wings very lustrous, base of the costa plum-purple. A 

 large, semi-elliptical patch of scales just beyond the base of the wing and resting 

 on the dorsum, but not reaching to the extreme costa, of deep, brilliant golden, 



