168 
NORTH AMERICAN NEPTICULIDAE 
Five specimens, bred from narrow linear mines on hawapple 
(Crataegus mollis). The mine (Fig. 11) is a tortuous serpentine 
tract, soon becoming brownish, and rareh' exceeding 1 mm. in 
breadth at its end. The cocoon is dark brown. 
Larvae may lie found in June, aiul in July and early August. 
The second generation of larvae usually overwinters, but occa- 
sionalh^ larvae of a third generation are found in late August. 
3. Nepticula pteliaeella Chambers 
Nepticula pteliaeella Chambers, Psyche, iii, 137, 1880; 276, 1881; Dyar’s No. 
6214. 
Tuft on head dark brown; eye-caps white. Thorax and base of fore wing 
at the dorsum silvery; a silvery fascia before the middle, a costal and opposite 
dorsal spot at three-fourths, on a dark brown ground color. Cilia silvery around 
the apex, becoming brown toward the dorsum. Hind wings and cilia dark 
brown. Legs brown outwardly, inner surfaces and apical segments of tarsi 
silvery. Abdomen dark brown above, paler beneath. 
Expanse — 4 to 4. .5 mm. 
Localiiies. — Kentucky (Chambers) ; Ohio. 
The larvae is a miner in leaves of hop tree (Ptelea trifoliata). 
The egg is deposited on the upper side of the leaf; the mine (Fig. 
12) which is everywhere much contorted, is at first very indistinct, 
and sometimes blotch-like; later it becomes more distinct, but is 
more or less obscured by the scattered frass. Deserted mines 
become whitish or yellowish. The larva is a very bright green in 
color. Cocoon dark brown. 
Two generations a year; larvae may be collected in July and 
in August and September. 
4. Nepticula quadrinotata new species 
Head dark brown; eye-caps silvery white. Thora.x and fore wings dark 
brown; markings silvery white, consisting of an elongate spot at base of dor- 
sum, a small spot on the costa before the middle, a larger triangular spot at 
the tornus, and a similar spot on the costa nearer the apex. Cilia brown, with 
silvery tips around the apex. Hind wings and ciha brown. Legs grayish 
iridescent. Abdomen brown above, silvery beneath. 
Expanse — 4 to 5 mm. 
Localities. — Cincinnati, Ohio; Fairfield County, Ohio; Powell 
County, Kentucky. 
Type material. — Flolotype (writer’s collection); paratype (Acad. 
Nat. 8ci. Phila.) ; six paratypes (writer’s collection). 
The larva, which is very pale green with a brighter green line 
of ingested food, mines leaves of hornbeam (Carpinus caroliniana) 
