130 THE CANADIAN ENTOMOLOGIST. 



In 1876, Mr. Baron had sent me living larva? in tin-box with food 

 plant. They were twelve days on the way in the mail, and but one larva 

 was alive on arrival. Several had made chrysalis in the box, but were 

 eaten, and probably the single larva had lived on the chrysalids. It had 

 barely strength to suspend within a few hours after I opened the box, and 

 died before chrysalis. This shows that caterpillars may be sent great 

 distances per mail. They will live and thrive so long as the leaves 

 remain fresh, and I have frequently received them in good condition after 

 five or six days on the road. But they should always be forwarded in tin 

 or metal boxes, as in these the leaves remain fresh several days. The 

 larvae get plenty of air under the cover of the box, so that it is unneces- 

 sary to punch holes therein. It is useless to send eggs or larva; in paper 

 or wood even for two or three days, as the plant dies and the larvae 

 starve. If eggs are sent, there should always be leaves with them, to 

 supply food in case the young larvae come forth. I frequently receive 

 eggs or larvae badly packed, and hence I give these directions. I shall 

 be glad of butterfly eggs or larvae at any time, and will gladly exchange 

 butterflies for them. 



As will be seen above, the resemblance in larval habits of Baroni to 

 Phaeton is close. 



Egg.— Shaped like Phaeton; a truncated cone, rounded at base ; the 

 lower two thirds smooth, but under a high power seen to be finely grained 

 or pitted ; the upper third ribbed vertically. 



Young Larva. — Length .08 inch ; cylindrical, the segments well 

 rounded ; translucent, greenish-brown ; on each segment a transverse row 

 of fine tubercles, giving out recurved hairs ; head obovoid, bilobed, the 

 vertices rounded, black. 



After first moult. — Length .15 inch; mottled greenish and brown; 

 armed with seven rows of spines (as in this genus), besides a row of 

 minute spines over feet; spines slender, and with black bristles; the dorsal 

 row yellow, as also the small spines over feet ; all others black ; on 2 a 

 collar of fine tubercles, each of which gives out a pencil of hairs; head 

 sub-cordate, vertices rounded, black, with black hairs. 



After second moult. — Length .22 inch ; color black ; all spines black 

 except dorsal row and the small ones over feet. (These three stages are 

 described from specimens in alcohol.) 



After third moult. — Length in hybernation, and therefore con- 

 tracted, .3 inch ; black ; spines thickly beset with divergent bristles, 



