NOKTU AMERICAN NEPTICULIDAE 
l()(i 
}). Ground color bronzy. 
( 1 . Collar pale yellowish (usually) 
24. opulifoliella 
(iq. Collar not pale. .. .23. corylifoliella 
pp. Ground color purplish black, 
q. Legs reddish yellow. 
26. condaliafoliella 
(iq. Legs silvery and fuscous. 
27. juglandifoliella 
kk. With additional silvery or golden markings. 
I. A semi-elliptical golden metallic spot on dorsum 
proximal to fascia 12. rhoifoliella 
II. Metallic markings along termen or at apex. 
m. Termen margined wdth silvery scales from 
dorsum to apex 13. terminella 
mm. Apex golden metallic, concolorous with 
fascia 14. villosella 
aa. Fore wings without pale spots or fasciae, 
b. Ground color pale ocherous or yellowish. 
c. A purplish fuscous band across apex of fore w'ing. 
d. Fore wing dusted wdth fuscous scales. 
e. A dark brown spot at base of dorsal margin. 51. nigriverticella 
ee. No such spot 52. populetorum 
dd. Fore wung not dusted 50. crataegifoliella 
cc. No such band; wing dusted. 
d. Tuft fuscous or blackish 53. saginella 
dd. Tuft ocherous 54. pallida 
bb. Ground color gray, brown or bronzy, 
c. Ground color pale gray. 
d. Wings evenly dusted with fuscous 46. punctulata 
dd. Wings not dusted; a fuscous spot in apex. . . .48. belfrageella 
cc. Wings brown, usually with purple or bronzj' luster. 
d. Size large (9 mm.) 47. grandisella 
dd. Not exceeding 6 mm. expanse. 
e. Fore wing with metallic bronzy or golden reflections. 
f . Wing deep reddish or purplish bronzy 42. pomivorella 
ff. Wing paler, with greenish golden reflections. . . .43. chalybeia 
ee. Fore wing dark brow n, with faint purple reflections. 
f. Tarsi of middle and hind legs pale ocherous. .44. flavipedella 
ff. Tarsi of middle and hind legs wdiitish. .45. castaneaefoliella 
l. Nepticula argentifasciella Braun 
Nepticida cirgentifasscieUa Braun, Journ. Gin. Soc. Nat. Hist., .xxi, 100, (1912). 
Palpi black. Tuft black behind, ochraceous in front. Antennae black, 
eye-caps silvery white. Thorax and base of fore wings dark purple. Fore 
nungs dark brown, with metallic reflections w'hen view'ed obliquely. At the 
basal fifth of the wing there is a brilliant silvery fascia, becoming decidedly 
