—gI— 
Preparatory Stages of Janassa lignicolor, Walker. 
By Harrison G. Dyar. 
Egg.—Globular and smooth. (The eggs were hatched when found, only the 
shell remaining.) 
First larval stage.—Pale brownish yellow. The head, the hump on joint 5, 
and a dorsal line on the anterior segments, of a more distinctly brownish shade. Anal 
feet partly aborted. 
Second larval stage.— Head slightly notched on top ; yellowish, marked with 
two brown bands. Body yellowish. Humps on joints 5 and 12 brownish, as is also 
the semi-obsolete dorsal line. , 
Third larval stage —The markings of the mature Jarva now begin to be as- 
sumed. Head brownish, with four confluent round whitish spots in front, the mouth 
parts and mottlings on each side of the band also white. The body is pale brownish 
with three large dark green patches, two on each side of joints 3 and 4, as in Ce/o- 
dasys unicornis, and the third, a dorsal patch, on joints 11 and 12, Black shades on 
the sides of joints 6 and 7, and on the dorsum on 8, g and 10. A white spot at the 
spiracles on joint If. 
Fourth larval stage.—The dorsal green patch extends on joints 9 and 10, in- 
closing an oblong brown space. Black shades laterally on joints 5, 6 and 7, and 
dorsally on 8. Several white spots at the spiracles of joint 11. 
Fifth larval stage.—Mature larva. Head, elliptical, with a depression at the 
summit, smooth. A hump on joint 5, prolonged upward and backward and termin- 
ating in two points, tipped with white. A pointed elevation on joint 12. Anal feet 
partly aborted, as in allied genera. Head whitish, with two mottled yellowish and 
brown bands, dentate inwardly, dividing the ground color in front into white spots ; 
two near the vertex, two rounded near the center, and the mouth parts and the space 
immediately above them, white. Similar markings occur on the sides of the head, 
the ground color being divided into about six partly confluent white spots by brownish 
mottlings. Body, pale whitish, mottled with brown, much. more heavily dorsally. 
A large dark green patch on each side of the anterior segments, bordered with brown, 
this border continued backward ventrally on joints 5 and 6. to joint 7. On the 
dorsum is another large dark green patch, beginning on joint $ in two points, in- 
closing a patch of the ground color on joint 10, extending down on the sides at this 
segment, and ending abruptly at the end of joint 12, Itis bordered with brown on 
joints 8,9 and 10. The hump on joint 5 is shaded with dark brown, and there is a 
black patch on each side of joint 7; but this last marking 1s, in some cases, more or 
less obsolete. The spiracles on joint 11 are surrounded by a circular row of white 
spots, while the spiracles on joint 12 are black. Abdominal feet, whitish, with a 
brown line above the claspers, the line on joint 10 darkest. 
Cocoon.—Tough and parchment-like, semi-transparent, similar to that of 
Calodasys unicornis. After forming its cocoon the larva fades to a nearly uniform 
whitish color, and the change to pupa does not occur till about a month before the 
emergency of the imago in the Spring. 
Pupa.—Shining, light reddish brown, appearing somewhat darker between the 
segments ; minutely, but sparsely punctured. At the posterior edge of the thorax 
