INSECTS MISTAKEN FOR ALETIA. 
349 
The ordinary lines appear, the medio-dorsal and the somewhat wavy snpra-stiguia- 
tal darker than the rest of tho body; the subdorsal and t ran verse sutures white. 
The protegfl on abdominal joint 7 are now quite distinct, though ratber small, and are 
used in walking. 
11 Fifth stage. — The fourtb skin is cast three to five days later, tbo larvae having 
changed very little in appearance, except that the dorsal and lateral lines and tb« 
piliferous warts are distinctly dusky. 
"Sixth stage. — Five or six days later the fifth skin is sbed, and the larva does not 
change in appearance. 
"Seventh stage.— The sixth molt takrs place about five days after tbo fifth, and the 
whole appearance of the insect is considerably changed. The color is pale, translu- 
cent, pea-green. The bead is not polished, of the color of the body ; the two oblique 
dusky stripes are composed of several irregular spots : tbelabrum is white, antenna pale 
greenish, and the eyes black. The medio-dbmal and subdorsal lines are composed of 
numerous irregular spots of a lemon-yellow color, the former with a more or less dis- 
tinct dusky shade on either side ; the sopra-stigmatal liuo is quite broad and almost 
white, and is also relieved by a dusky shade. Piliferous warts pale yellow, surrounded 
by transversely oval, indistinct, dusky rings. Tho whole body is speckled with nu- 
merous, usually transversely oval, small, lemon-yellow spots, which inclose from two 
to three almost colorless, glistening, round dots. Stigmata orange. Legs pale green: 
claws and booklets pale brown ; venter bluish-green. 
"Length of full-grown larva about 3o m,n (If iuches). 
"Pvpa. — (Plate II, Fig. 2.)— Length, IS"™ 8 . Color, blackish-brown; wing-sheaths 
opaque, the remaining portion faintly polished. Front of head prolonged into a short, 
stout, conical projection; near its base ventrally are two fine and quite long hairs 
and two similar pairs dorsally near insertion of antenna?. Eyes prominent and con- 
siderably polished. Legs reaching to tip of wing-cases ; antenna- shorter. Median 
line of prothorax quite sharp and carinate, median lint; of mesothorax faintly ele- 
vated, somewhat polished. The wholo anterior portion of body finely and closely 
granulated. Metathorax and the three following abdominal joints, with numer- 
ous shallow, circular depressions, each having a central granule. The circular de- 
pressions on abdominal joints 1-S are somewhat larger and their margin is slightly 
elevated; the posterior third of joints 4-0 is of a lighter color than the resi of the 
body and very closely aud quite coarsely granulated, while the posterior third of ab- 
dominal joints 7 and 8 is polished and not granulated. The last joint is very pecu- 
liarly formed ; its tip is broad and prolonged each side into a short, stout, and sharp 
tooth directed forward, and between these two is a pair of slender and also bristle- 
like spines, directed forward and with their tips curved in the shape of a loop; an- 
other pair of similar bristle-like spines, which are directed forward and inward, are 
situated, one at each side, on a small projection at tho base ventrally of the stout 
lateral teeth, and between these in a large projection which is armed at its edge with 
two large, stout, claw-like teetb, which stand at right angles to the body of the pupa. 
The anal swelling is smooth, circular, and quite prominent ; tho remaining portions 
of the tip are marked with coarse, elevated ridges, both dorsally and ventrally.'' 
The opinion expressed above that this is exclusively a Southern spe- 
cies is to be modified somewhat by the finding of the eggs and larvae 
quite abundantly in September, 1S82, on Abut Hon avicennce at several 
localities in the District of Columbia. On September 21, the largest 
larva was nearly an inch long, and on October 3 it spun up and trans- 
formed to pupa. The first moth issued October J5, and on October 1G 
several moths were captured at sugar. On October 22, quite a large 
number of larvae of all sizes, from those just batched, to the nearly 
full-grown individuals, were found feeding on the same plant at Ivy 
City, D. C, and October 25, eggs and young larvae were found on the 
