1G4 
NORTH AMERICAN NEPTICULIDAE 
The few listed species named from larvae and not yet reared, 
are grouped at the end of the known species, with such additional 
information as has been secured aliout them. 
Key to the Species of Nepficula 
a. Fore wings witli pale s})ots or fasciae. 
b. A silvery or pale golden metallic spot at or very near the base of the wing, 
c. A median fascia. 
d. A costal and a dorsal spot at three-fourths. .. .3. pteliaeella 
dd. No such spots at three-fourths. 
e. Thorax and extreme base of wing purple..!, argentifasciella 
ee. Thorax and extreme base of wing golden 2. scintillans 
cc. No. median fascia 4. quadrinotata 
bb. Without such a spot. 
c. Basal third of wing buff 11. cerea 
cc. Basal third of wing not buff. 
d. A pale costal spot at one-third • .5. trinotata 
dd. Without a pale costal spot at one-third, 
e. Two pale fasciae. 
f. Thorax creamy buff 10. rhamnicola 
ff. Thorax dark. 
g. Head black 8. intermedia 
gg. Head ochraceous. 
h. First fascia dull yellow 9. diffasciae 
hh. First fascia shining. 
i. Thorax and base of fore wing bronzy; expanse 5.5 mm. 
6. ceanothi 
ii. Thorax and base of fore wing purple; expanse 4 to 4.5 mm. 
7. bifasciella 
ee. One pale fascia. 
f. Fascia more or less interrupted. 
g. Male with a chitinous plate from base to near middle of costa 
of hind w'ing. 
h. Fascia silvery 38. platan ella 
hh. Fascia not silvery; male with long hair-pencil from base 
of costa of hind wing 40. similella 
gg. No such chitinous plate in male 39. clemensella 
ff. Fascia complete. 
g. Fascia before the middle; wing lusterless. 
h. Whitish costal and dorsal spots at three-fourths. 
41. thoracealbella 
hh. No such spots at three-fourths 49. latifasciella 
gg. Fascia in or beyond middle of wdng. 
h. Apex white 28. apicialbella 
hh. Apex not white (sometimes wdth wdiite apical cilia). 
i. Fore wdng almost lusterless; fascia not more shining than 
remainder of wing. 
