50 ENTOMOLOGICAL NEWS. [Feb., 'OO, 



thread or stem varying from a fraction of an inch to four 

 inches in length, about two inches being most usual. The out- 

 side dimensions are : Length, two to two and a half inches ; 

 diameter, about one and a quarter inches. The silk is pale in 

 color and lustrous, and the outside of the cocoon usually has 

 several large magnolia leaves irregularly attached. From angu- 

 lifera it differs in size, in its looser texture outwardly, in its 

 much more decidedly double character, and in the possession 

 of a stem, evidently a rare character in angulifera. 



The moths from these cocoons emerged April ist to 2ist, 

 fourteen males and fifteen females. They exhibit very little 

 variation among themselves and present constant differences 

 from any angidifera I have been able to see, as is apparent 

 from the description (Ent. News, XIX, page 231) and the 

 illustration herewith. One of the females was mated, and from 

 April I2th to I7th she deposited 191 eggs. The eggs, laid in 

 irregular rows, are similar in size and appearance to those of 

 angulifera. A few hours after being deposited they are chalky 

 white in color, sometimes irregularly splotched with brown, 

 evidently stained with the fluid by which they are attached to 

 the leaf. At out-of-door temperature they began to hatch' April 

 iQth, some being delayed until May I2th by a spell of cold, wet 

 weather. Magnolia glauca not being procurable near Wilming- 

 ton, Delaware, when they hatched, the young larvae were tried 

 with another species of magnolia, with sassafras, spice-bush, 

 wild cherry, and tulip-tree. They refused all but the last 

 named. On tulip-tree out of doors, they all succumbed to a 

 cold rain ; a few, fed indoors, survived through all the larval 

 molts. They showed considerable color variation, and as direct 

 comparison was impossible, no character was detected to sep- 

 arate them positively from the larva of angulifera. 



The newly hatched larvae are yellow with two narrow black rings 

 on segments T 2 , A s inclusive, and one on each of the remaining seg- 

 ments. The clusters of setae on the first thoracic and last abdominal 

 segments are black ; the median cluster on A 8 is dark, and all the rest 

 are yellow. The head is black with a white band across the front 

 and a white spot on either side above. Feet black. 



Second larval stage. But little changed except in size; the light 

 markings on the head are broader and pale yellow in color. 



