OF THE STATE ENTOMOLOGIST. 161 



much attention upon their lon^, graceful antenn<x3 as many a maiden 

 does upon her abundant tresses, drawing them between their jaws 

 and smoothing them with the palpi with evident satisfaction. 



I have reared three broods successively from eggs deposited in 

 the cage. The first year no ill effect seemed to be produced by the 

 confinement. The insects ate as greedily, stridulated as noisily and 

 oviposited as freely as those which roamed at will out-doors ; and I 

 even succeeded in keeping some in a warm room, feeding on apples 

 up to December 6, 1869, or more than two months after the unhoused 

 specimens had ended their autumn feast and retired to endless rest. 

 All the eggs from this first domesticated brood hatched the following 

 spring, but the progeny was not quite so hardy, did not live so long, 

 nor leave, in proportion to their numbers, so many eggs as their imme- 

 diate parents. The third spring about half the eggs failed to hatch, 

 and evidences of degeneracy began to be manifest in the slower 

 growth and numerous deaths while molting. Mone of the insects 

 acquired their wings until the latter part of August, and when they 

 did the majority were deformed. But few eggs were laid, and these 

 were placed with less regularity than formerly. The members of this 

 third captive generation all died early in September, and their eggs, 

 the next, or fourth spring, failed to hatch. 



DESCRIPTIVE or THE IMJVIATUKE STAGES. 



When first hatched the face is whitish-green, with the bodj' of a more yellowish- 

 green. It is covered, except on the head, with minute black spots, and there is a pale 

 yellow racdio-dorsal line, interrupted on the abdominal joints. The spots are placed in 

 transverse rows on the posterior edge of each joint, but are scattered irregularly on the 

 legs. The antennas are nearly five times as long as the body. The color of the mature 

 larva is dark yellowish-green above, with a bright yellow line along the top of head, 

 continuing along the narrow ridge on the top of the thorax and along the first three 

 abdominal joints, from whence two narrow lines diverge, run along the upper border 

 of the abdomen and approach again at the anus. The sides are whitish or pale bluish- 

 green, mottled with a still paler shade, and with an abdominal row of yellow dots and 

 a continuous whiter line below them ; venter still paler. 



The pupa is colored and marked very similarly, but the yellow, dorsal lines are 

 sometimes salmon-colored, or pink. The wing-pads appear as conspicuous fan-shaped' 

 appendages. The covering of the head has the appearance of being composed of tiny, 

 over-lapping scales of a green color, outlined by a narrow edge of white. The labrum 

 is long, somewhat horse-shoe shaped, and bordered witli cream-white ; mandibles dark 

 brown, strongly toothed, concealed, except when the insect is eating, by the broad, 

 bilobed, lip-like maxillae ; labium rather small, bifid; maxillary and labial palpi long, 

 filiform, kept in almost incessant motion, and performing several functions besides that 

 of selecting the food. The eyes are greenish-brown, round and prominent. The fili- 

 form antennae are from two to three inches in length and seem acutely sensitive to touch. 



