90 
Hind wings and abdomen above, pale fuscous, paler beneath. Under- 
side of the fore wings, fuscous and showing the costal marks of the 
upper side. 
Described from 22 examples: 2 from Orono, Maine, 4 from 
Pennsylvania, 8 from Missouri, 1 from California, 2 from England, 
and 5 from Germany.” [Fernald.} 
Larva.—(Plate VI, Vig. 7, a. b. d.) The iarva is thus described 
by Walsh and Riley : “The larva measures, when full grown, 0.25 
of an inch. Largest on the first segment, tapering thence very 
slightly to the last. Color varying from very light yellowish brown 
to dark olive green or brown, Body soft, somewhat translucent, 
without polish; the piliferous spots quite large, shining, always light 
in color, contrasting strongly in the dark specimens with the ground 
color. Hairs, especially lateral ones, quite stout and stiff. Spots 
arranged in the normal form, segments 2 and 3 haying none, how- 
ever, on their posterior half, as have the rest. Head horizontal, of 
a shining fulvous color, with a more or less distinct dark eye-spot 
and tawny upper lip. Cervical shield of the same shiny appear- 
ance. Anal segment with two black spots at posterior edge, being 
confluent and forming an entire black edge in some specimens. 
Legs, prolegs, and venter of the same color as the body above.” 
To the above I may add that a piliferous tubercle appears just 
outside the base of each leg and proleg, and that a row of such 
tubercles extends across the under surface of each of the footless 
segments. The head is pale yellow, finely, transversely rugulose, 
with the frontal sutures very deeply impressed. 
Pupa.—The pupa is slender-ovate, pale brown, 5 mm. long by 
1.4 mm. wide. The abdomen is smooth beneath, and armed at the 
posterior extremity with several slender hairs, which are abruptly 
hooked at tip. Above, each abdominal segment bears two transverse 
rows of stout, recurved, spinous tubercles, one near the anterior, and 
one near the posterior margin of each segment excepting the last, 
which bears three rows. The anterior row on each segment con- 
tains fewer but larger spines than the posterior, the former becom- 
ing larger from before backwards, and the latter smaller. 
DISTRIBUTION. 
The species has heretofore been reported from Europe, Canada, 
Nova Scotia, Maine, Massachusetts, Wisconsin, Minnesota, Towa, 
Northern Illinois, Northern Indiana, Missouri and California. In 
this State the localities mentioned in previous accounts of its dis- 
tribution are Princeton, Normal, Bloomington, Morris, Sterling and 
Prophetstown, all lying north of the center of the State. 
Indeed in his Seventh Report (1878), Dr. Thomas remarks: ‘‘It 
has been, as I learn, doing considerable injury to strawberry plants 
during this autumn in Central and Northern [linois, but so far I 
have heard no complaint against if in the Southern part of the 
State; in fact, it appears from all the evidence I can obtain, to be 
a northern insect, seldom extending further south than the southern 
border of the central section of the State.” 
