348 REPOET 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 



speckled more or less intensely with ferruginous or brown. The pos- 

 terior half is deeper, with olivaceous and brown shades, and with mora 

 or less of lilaceous. The hind wings are dull-yellowish, more or less 

 shaded with reddish brown. The markings are withal so unique, as 

 shown in the figure, that the species cannot well be confounded with 

 any other. 



"During winter the time elapsing from hatching to maturity Las 

 averaged, in our vivaria, about seven weeks, but development will b© 

 much more rapid during summer. 



" Should the IJrena ever be cultivated for its fiber, this its chief enemy 

 will readily be destroyed by the same methods recommended against the 

 Cottop Worm. 



"descriptive. 



" Anomis erosa, Hiib. — Egg. — Diameter 0.8°i°^, circular, flat below ; the upper sur- 

 face varies somewhat in convexity, in some being almost hemispherical, whilst with 

 others it is quite flat, in general shape and size reminding one of the egg of Aletia 

 xylina. Color, pale yellowish-green, almost of the same shade as the lower side of the 

 leaves. The number of ribs which run from the base toward the summit varies in 

 different eggs from 31 to 38. Of these ribs from 11 to 13 reach to about one-fourth 

 the distance above the base, 5 to 7 half way toward the summit, and 16 to 18 to near 

 the summit. The space between these ribs is divided quite constantly by 12 low 

 transverse ribs, which at the intersection with the radiating ribs form a small though 

 quite sharp triangular point, which is especially conspicuous in the empty egg. The 

 spaces between these ribs form shallow, squarish depressions, which are finely gran- 

 ulated. The summit is almost smooth, surrounded with three series of small, round- 

 ish cells, which become larger away from the center, and beyond these another series 

 of three rows of larger cells of different shapes, though more or less squarish. 



"Larva (Plate II, Fig. 1). — First stage. — Length of the newly-hatched larva, S^"^. 

 Color very pale greenish-yellow along the dorsum, white and transparent toward the 

 sides; head pale yellowish, without any markings; eyes black, tips of mandibles 

 brown. Antenuse short, 3-jointed ; first joint stout, very short and somewhat conical ; 

 second joint longest, clavate, its tip obliquely truncate externally, bearing at inner 

 and outer angles a stout spine, which is a little longer than the third joint; third 

 joint shorter than second, cylindrical, with a small tubercle at tip, resembling a fourth 

 joint, and provided at its tip with a fine hair; at the inner side of the third joint, at 

 base of the apical tubercles, arises a stout spine which is almost as long as the joint 

 itself. Piliferous warts, pale brownish, each bearing a long and slender pale hair. 

 Legs rather long, w^hite ; only two pairs of abdominal prolegs, situated on joints 8 

 and 9. 



** Second stage. — The first molt takes place seven or eight days after hatching ; at 

 this time the larvae differ from the newly-hatched specimens only in the somewhat 

 larger size and slightly darker color. 



" Third stage. — In from six to seven days the second skin is cast, and with this molt 

 appears the third pair of abdominal legs on joint 7. They are, however, extremely 

 small and scarcely noticeable ; they are not used in walking. The color now is a 

 darker green, lighter toward the sides, and with a pair of rather indistinct whitish 

 dorsal stripes. Head highly polished, pale, faintly greenish, with two pale, dusky 

 oblique stripes. Cervical shield slightly dusky, with a darker posterior margin. 

 Piliferous warts black, the hairs colorless. The abdominal legs are marked externally 

 with a broad dusky stripe. 



"Fourth stage. — The third skin is cast six or seven days after the second molt. The 

 larva is now almost of the color of the leaves, and measures about lA^^^ ia length. 



