25 



" The eofo-s are irlobular, about one-eio-hteenth of an inch in 

 diameter, nearly salmon colored and with a smooth surface. 

 They are laid on the under side of the branches, on the trunks 

 of the trees, often below the surface of the ground, where the 

 latter has shrunk away from the tree, and not infrequently 

 on the fences or on the sides of Iniildings. They are laid in 

 oval or rounded masses, often to the number of four hundred 

 or live hundred, and covered with ochre yellow hairs from 

 the abdomen of the female. The eggs are laid in the early 

 part of July, but do not hatch till the following spring. The 

 caterpillars remain together, feeding upon the leaves, and 

 when not feeding they habitually rest side by side on the 

 branches and trunks of the trees. 



"The full-grown caterpillar (Fig. 3) is about an inch and 

 three-fourths in length, very dark brown or black, finely 



reticulated with pale yellow. There is a pale yellow line 

 along the middle of the back and a similar one along each 

 side. On the first six segments following the head there is a 

 bluish tubercle armed with several black spines on each side 

 of the dorsal line, and on the remaining segments these 

 tubercles are dark crimson red. In the middle of the tenth 

 and eleventh segments there is a smaller red tubercle notched 

 at the top. The whole surface of the body is somewhat 

 hair}', Imt along each side the hairs are long and form quite 

 dense clusters. 



"The pupa (Fig. 4) is from three-fourths of an inch to an 

 inch in length, and varies in color from chocolate to reddish 

 brown. On each side, at the base of the wing-covers, is a 

 dark reddish brown, oval, velvety spot. The wing-cases are 

 quite l)road and reach to the posterior third of the fifth seg- 



