INSECTS MISTAKEN FOR ALETIA. 349 



The ordinary lines appear, the medio-dorsal and the somewhat wavy snpra-stigma- 

 tal darker than the rest of the body ; the subdorsal and tranverse sutures white. 

 The prolegs on abdominal joint 7 are now quite distinct, though rather small, and are 

 used in walking. 



''Fifth stage. — The fourth skin is cast three to five days later, the larvae having 

 changed very little in apj^earance, except that the dorsal and lateral lines and the 

 piliferous warts are distinctly dusky. 



"Sixth stage. — Five or six days later the fifth skin is shed, and the larva does not 

 change in appearance. 



"Seventh stage.— The sixth molt takes place about five days after the fifth, and the 

 whole appearance of the insect is considerably changed. The color is pale, translu- 

 cent, pea-green. The head is not polished, of the color of the body ; the two oblique 

 dusky stripes are composed of several irregular spots ; thelabrum is white, antennae pale 

 greenish, and the eyes black. The medio-dorsal 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 supra-stigmatal line 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. The 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 35™'^ (1| inches). 



"Pupa. — (Plate II, Fig. 2.)— Length, 15™"^. 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 antennae. Eyes prominent and con- 

 siderably polished. Legs reaching to tip of wing-cases; antennae shorter. Median 

 line of prothorax quite sharp and carinate, median line of mesothorax faintly ele- 

 vated, somewhat polished. The whole 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 4-8 are somewhat larger and their margin is slightly 

 elevated; the posterior third of joints 4-6 is of a lighter color than the rest of the 

 body and very closely and 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 the base ventrally of the stout 

 lateral teeth, and between these is a large projection which is armed at its edge with 

 two large, stout, claw-like teeth, which stand at right angles to the body of the pupa. 

 The anal swelling is smooth, circular, and quite prominent ; the 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, 1882, on Abutilon 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 15, and on October 16 

 several moths were captured at sugar. On October 22, quite a large 

 number of larvae of all sizes, from those jiist hatched, 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 



