BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 163 



1311. RILEY, C. V. Continued. 



106 Strange habit of birds of using the empty cocoon as a store- 

 house, 107 The cecropia worm can not be classed as an injurious 

 insect, 107 Samia Columbia ought to be considered a variety of 

 cecropia, 107 Parasites, 107 The long-tailed Ophion, 107; its 

 mode of oviposition, 108; habits of its larva, 108 The cecropia 

 Tachina-fly, 108; how it affects its victim, 108;*ts larva and 

 imago, 109 The Mary Chalcis-fly, 109 ; how it escapes from the 

 cocoon of the moth, 109; description of the imago, 110 The ce- 

 cropia Cryptns, 110 ; its habits, 110 ; description of the two sexes, 

 111 ; how it differs from the allied species, 111. 



TheAilanthns silkworm, Attacus cynthia 112 



Difference between the silkworms of the castor-beau and Ailanthus, 

 112 Introduction of the Ailanthus silkworm into Europe, 113 

 Ailanthiculture in Europe, 113 Its introduction into America, 

 114 Disadvantages of the Ailanthus silkworm, 115 Its acclima- 

 tization in America and Australia, 115 Value of the cocoon, 115 

 Mr. Forgemol's device for unwinding the cocoon, 116 Natural 

 history of the Ailauthus silkworm, 117 The egg and mode of 

 egg-laying, 117 Larval changes, 117 Pupation, 118 The imago 

 and its variations, 118 Food-plants, 118 Directions for raising 

 the worms, 119 A good word for the Ailanthus tree, 120. 



The promethea silkworm, A ttacus promethea 121 



Value of the cocoon, 121 Mode of egg-laying, 121 Larval changes, 

 121 How the cocoon is fastened to the twig, 122 Striking 

 sexual difference in the moth, 122 Callosamia angulifera ought 

 not to be considered as a different species, 122 Food-plants of 

 the worm, 123 Natural enemies. 123. 



The luna silkworm, Actias luna 123 



The beautiful appearance of the moth, 123 The cocoon, 124 Food- 

 plants, 124 Larval changes, 124 Season when the imago issues, 

 125 No parasites of the worm known, 125 Actias selene proba- 

 bly identical with luna, 125. 



The polyphemus silkworm, Telea polypliemus 125 



Mode of egg-laying, 125 The egg, 126 Food-plants, 126 Larval 

 changes, 126 The cocoon, 126 Mr. Trouvelot's account of the 

 issuing of the moth, 127 Wonderful vitality of the chrysalis, 

 127 Characters of the moth and its variations, 128 The broad 

 antennae of the male moth mistaken for a third pair of wings, 

 128 Difficulty of reeling the cocoon, 129 Number of annual 

 broods, 129 Parasites, 129. 



The yama-ma'i silkworm, Anthercra yama-mai 130 



Its native home and food-plant, 130 Its introduction "into Europe 

 and Australia, 130 Attempts at raising it in America, 130 The 

 egg and how it should be kept over winter, 131 Climate most 

 favorable for the worm, 131 The worm and its resemblance to 

 the leaf, 132 Food-plants, 132 Larval changes, 132 The co- 

 coon and the value of its silk, 133 The moth and its habits, 

 133 Difficulties of rearing flie worm, 133 Mr. Adams's account 

 of rearing the yama-mai worm in Japan, 134 The Uji parasite, 

 136, 



The perny silkworm, Anthercea pernyi 137 



Its native home, l:'7 How it differs from the preceding, 137 Lar- 

 val changes, 137 The cocoon aud its silk, 137 The moth, i:!7 

 Its culture; iu Ciiiuu, 13d -The. tussch silkworm, 136. 



