[FLETCHER & GIBSON] SOME SPECIES OF CANADIAN LEPIDOPTERA 63 
Length of mature larva at rest 36 mm. extended 42 mm., width 
4.5 mm. 
A few specimens ,entered the earth for pupation on the 14th June, 
1902. By the 16th all but 10 had buried. 
The earthen cell is distinctly lined with silk, which gives a some- 
what whitish appearance to the inside. The outside measurements of 
the cell vary from 22 to 24 mm. long and 7 to 9 mm. in diameter. 
Pupa—Length 18-20 mm. long. width at widest part 4-5 mm.; 
chestnut brown, shining; thorax and wing-cases slightly wrinkled. 
Spiracles black. Cremaster black, deeply wrinkled, and bearing 2 rather 
long converging spines, each of which is curved outwardly where they 
come together. . 
The first moth emerged_on September 10, and the others issued 
. during the next few days. At Ottawa the moths are some years very 
abundant in September and early October, and hibernated specimens 
towards the end of April and in early May. 
GLUPHISIA SEVERA, Hy. Edwards. 
On the 30th April, 1901, eggs were received from Mr. J. W. Cockle, 
of Kaslo, B.C. These eggs were laid at Kaslo on the 22nd April. 
Eggq.—1.0 mm. in diameter, 0.7 mm. high, almost hemispherical 
in shape, shiny, whitish-green, smooth; under a lens finely and beauti- 
fully reticulated. 
Eggs hatched 3rd May—duration of egg state 13 days. 
Stage I.—Length 3.5 mm. Head 0.6 mm. wide, large, rather 
wedge-shaped, flat in front, slightly bilobed, shiny, whitish green; sete 
en face short and pale; ocelli black; mandibles slightly darkened at 
tips; antenne white. Body cylindrical, slightly paler than head; sete 
pale and short; skin smooth but not shiny; segments wrinkled. No 
markings on body. Thoracic shield concolorous with head. Thoracic 
feet semi-translucent; abdominal feet and anal prolegs concolorous with 
body; all the feet bearing short sete. A day or two before the first 
moult a faint pale lateral band appears. 
The young larva is very active, and spins much silk, letting itself 
down three or four inches when disturbed. All through this stage 
it rested either on the lower side of the leaf, on which it had been feed- 
ing, or suspended itself on a thread about an inch below it. In 
feeding the young larva eats right through the tender leaf and gradually 
enlarges the hole day after day. Most of the leaves had two or three 
holes, about one-fifth of the whole leaf being consumed in the four days 
—the length of this stage. When at rest on a leaf the larva sometimes 
