THE CANADIAN ENTOMOLOGIST. 139 



the earth, and tlien doubles and twists till it has formed a cyst, the wall of 

 which is compacted by the pressure of the larva, and by moisture exuded 

 from its body. 



When house-plants are re-potted it sometimes happens that chrysalids 

 of small moths are unwittingly potted also, and takeii ifito the house. 



I have two specimens of the beautiful little moth Gluphisia trilineata, 



Packard, which, at different times in the winter, issued from the soil 



around window-plants in my home. 



(c) Many insects — among them the beautiful Saturnians — on the 

 approach of winter, envelop themselves in wonderfully-constructed cocoons. 

 The large, spindle-shaped cocoons of Attacus Cecropia^ Linneus, may 

 often be seen, high up, on twigs of apple, maple and other trees. 



If you examine one of these cocoons, you will find that it consists of 

 an outer case, stiff and compact, to shed moisture, and of an inner blanket- 

 like wrapping, soft and warm. The way of exit is guarded from intrusion 

 by convergent bristles. 



I have some remarkable cocoons from x^rizona. They are very com- 

 pact and hard, gray in colour, and veined with dark brown. They have 

 no soft blanket within — that, in a warmer climate, was unnecessary ; but 

 they have a wonderful prolongation of the upper part, curved over, so as 

 to form a pent-house to the opening beneath, evidently to shed the rain 

 and keep the inmate dry. The silken band that held the cocoon to the 

 twig proceeds from the outer extremity of this prolongation. The con- 

 vergent bristles, to keep out troublesome visitors, are attached regularly to 

 the inner surface of the cocoon, and extend but a little way within. The 

 magnificent Saturnian that came from these cocoons is, I understand, 

 Attacus spletididus, De B. 



I have before me a cocoon of a Limacodes, probably Euclea querceti, 



Herrich-Schaeffer, brought from Mirand, P.Q., by Miss M. G. Johnston, a 



member of the Quebec Branch. It resembles a brown bean held in place 

 by a few hairs. 



(3) A large number, both of Butterflies and Moths, spend the winter 

 in the perfect state. The hibernating butterflies belong to the genera 

 Vanessa and Grapta. The moths are Noctuids. Of these moths, numbers 

 may be found in the sugar season, drowned in the sap that has accumulated 

 in the buckets during the night. 



