190 
NORTH AMERICAN NEPTICULIDAE 
The pii])lished description of A^. badiocapiteUa is practically 
identical with that of Ah thoraceaJbella; tliis fact combined with 
the variability of specimens, leads to the conclusion that they 
apply to the same species. The life history is not known, lint the 
species is evidently two brooded, as I have taken moths in May 
and July. 
42. Nepticula pomivorella Packard 
Micropterijx pomivorella Packard, Amer. Nat., vi, 685, 1872; Nepficuln 
pomivorella (Packard), Bu.sck, Can. Ent., xxxiii, 52, 1901; Dyar’s No. 6211. 
Tuft orange-ochraceous; ej-e-caps and collar shining pale buff. Thorax 
and fore wings shining bronzy, with strong purjile and lilue reflectioirs increas- 
ing toward the apex. Cilia gray. Hind wings and cilia gray. Legs shining 
bronzy; hind tarsi yellowish. Abdomen dark brown, with purjile reflections. 
Expanse. — 5 mm. 
Localities . — Alassachusetts (Packard, Fernald); Washington, 
District of Columliia (Busck); Ohio. 
The larvae mine long narrow serpentine tracks (Fig. 10) on 
leaves of apple, gradiially widening to 2 or 2.5 mm. at the end. 
C'ocoon reddish brown. 
This species is extremely common in some localities, Init rare 
and seldom met with in others. 
4.3. Nepticula chalybeia Braun 
Nepticula chalybeia Braun, Can. Ent., xlvi, 20, 1914. 
Palpi grayish ocherous. Tuft ocherous, sometimes shading to reddish brown 
above, collar j-ellowish white; antennae fuscous, eye-caps yellowish white. 
Thorax steel-gray. Fore wings very narrow, steel-gray, with faint greenish 
golden reflections. Cilia gray, faintly purple tinged around the ajiex. Hind 
wings grai'. Legs gray, tarsi ocherous. Abdomen dark gray, with a inir])lish 
luster. 
Expanse. — 3.5 to 4 mm. 
Locality. — Cincinnati, Ohio. 
The larvae mine leaves of wild pear (Pyrus commuins) and 
cultivated pear, making rather short serpentine tracks (Fig. 46), 
often not exceeding 2 cm. but sometimes reaching 3 cm. in length, 
and broadening to 1.5 to 2 mm. across at the end. The mined 
portion of the leaf very shortly turns dark brown. Larva bright 
green; cocoon dark brown. There are three generations a year; 
mined leaves may be collected in early June, in July and during 
the last part of August. 
