but lie right under the leaves and sometimes close to the twigs and stem. Arctia 

 larvae as a rule hide and are generally hard to find. They are low feeders and 

 walk away from their food to hide. An easy way to get them is to look for 

 plants where they have been feeding, and when such plants have been located 

 the larvae can be looked for in two ways, one is to use a light at night while the 

 larvae are feeding and the other is to lay heavy brown paper close to the food- 

 plants. Nine times out of ten the larvae after feeding will go under the paper 

 to hide, and it is an easy matter to pick them up the next morning. Some Catocalas 

 can be gathered in the same way, while others can be found between the ridges 

 of the bark on trees. The best time to look for hiding larvae is on dark cloudy 

 days, when the larvae in most cases do not leave the plant. Sometimes they can 

 be found right where they have been feeding during the night. Such conditions 

 prevail on rainy days as well. The large Saturnidae as a rule do not hide and 

 these are prey to the parasites. It is often the case that ninety out of a hundred 

 Attacus cecropia are parasitized." 

 WORMS THAT CARE. 



J. M. Aldrich, 238 South Grant St., La Fayette, Ind., writes: "About 

 the worm that cares, I well remember making a similar observation on the Sessid 

 borer of white ash in South Dakota many years ago. 1 he larva when full- 

 grown bores to the surface, but in that case leaves a very thin scale of the outer 

 bark undisturbed, so there is just the slightest discoloration visible on the surface 

 to mark the circle that has been eaten away, but the adult can easily push out, 

 leaving the pupa-skin in the hole. I like to think that the worm does care; at any 

 rate the purely mechanical explanation in vogue seems to me to cast a little 

 reflection on all life, including our own." 

 THE SPECIES OF PARNASSIUS. 



J. Henry Watson, 70 Ashford Road, Wittington, Manchester, England, 

 says: "Now as regards Parnassius, M. Wright was one of my correspondents 

 and I possess from him types of the forms which he named as species as well as 

 types from him of Edwards' forms which had been verified by Edwards himself. 

 These particular insects are at Mr. Rothschild's at present on loan. I shall be 

 there soon and get them back. There are but three species of Parnassius in N. A. 

 Eversmanni which I do not possess from America ; Clodius and Smintheus which 

 is only a form of the European Phoebus. There are many forms and geographical 

 races, and I received at least three forms of Clodius from Lake Tahoe. I note 

 your remarks on foodplants and will give you a list of foods I have reared your 

 American Saturnids on in England." 

 CARE OF COCOONS. 



Robert Dickson, 804 Duquesne Way, Pittsburg, Pa., says: "Take regu- 

 lation flower pots, from the smallest to the largest sizes, put gravel in each for 

 drainage, fill them with good fine soil, put the pupae or cocoons on top and then 

 get tin rings of suitable sizes to fit in the inner edges of the pots so they can be 

 pressed into the soil. These rings are something like a tomato can without top 

 or bottom and need not be more than three or four inches high. In them, above 

 the cocoons, I place a few twigs so that when the moths emerge they will have 

 something to cling to. Over the top of the rings place strainers or netting as 

 covers. I prefer strainers for they are easily removed. Under the flower pot 

 put saucers which are to be filled with water once or twice a week. This gives 

 perfect moisture. It is not the dry air at the moment the moth emerges which 

 causes the wings to shrink up, but the lack of moisture during the entire pupal 

 stage. If you follow these directions you will obtain good results." 



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