1890.] 
529 
[Packard. 
LIFE-HISTORY OF DASYLOPHIA ANGUINA (ABBOT AND SMITH), PL. III. 
I received a few of the eggs of this moth from Miss Emily L. Mor- 
ton of Newburg, N. Y. The young hatched July 25th, and were 
fed on locust leaves. 
Egg . — Shape of a flattened spheroid, the upper pole somewhat 
concave, a little broader at the base than at the top. The shell is 
very thin and transparent, so that the larva with its yellowish head 
and red lines can be distinctly seen through it. The surface is 
covered with polygonal areas, which are not very distinct, though 
as much so on the upper pole as on the sides. The areas varv 
somewhat in shape, size, and distance apart, the interspaces being 
rather broad, and there are no beads like those on the surface of 
the eggs of Schizura. Diameter, 1 mm. 
Larva of first stage, just after hatching . — July 25. Length 3-4 mm. 
The head is very large, nearly twice as wide as the body behind 
the middle, rounded, and with a fine narrow black stripe along the 
hinder edge ; it is honey-yellow, with scattered black hairs. Body 
moderately slender, gradually diminishing in width to the end, the 
anal legs being long and slender, larger than in the young of 
Schizura. They are forked, long and slender, the terminal third evag- 
inating, and nearly as large at the end as at the base, and held lifted 
up together with the two preceding segments, at an angle of about 
45°. The claws are entirely absent, the tip being soft, retractile 
and extensile, and the leg itself being provided with 12-13 stiffdark 
acute setae. They differ but slightly from those of the fully-fed 
caterpillar. The end of the leg is retracted by three slender re- 
tractor muscles, one being single, the two others united near their 
insertion into the retractile portion. 
The other abdominal legs are provided with a semicircle of ten 
hooks each, the inner two hooks of one set being very short. All 
the legs, both thoracic and abdominal, are dull greenish. The 
body is deep pea-green, the surface shining. The first abdominal 
segment shining red, with two slender, papilliform, non-piliferous 
subdorsal deep red tubercles, situated in or just below the subdor- 
sal lines. There are two similar but much smaller piliferous red 
warts on the eighth segment. Body behind the head with five red, 
or reddish-black lines ; the single dorsal and the two subdorsal 
lines- narrow, nearly continuous, scarcely broken. The lateral line 
is slightly interrupted like the others at the sutures. Below the 
34 
PROCEEDINGS B. S. N. H. 
VOL. XXIV 
JULY, 1890. 
