BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 157 



1301. KILEY, C. V. Continued. 



BENEFICIAL INSECTS. 



THE GLASSY-WINGED SOLDIER-BUG, Campyloneura vitripennis 137 



It preys upon different species of leaf-hoppers, 137 Its larva and 

 pupa, 138 How it seizes its prey, 138 Coloration of the insect, 

 138 It was never observed before to attack the leaf-hoppers of 

 the grape-vine, 139 Habits of the Phytocoridce, 139. 



INNOXIOUS INSECTS. 



THE WHITE-LINED MORNING SPHINX, Deilephila lineata 140 



Resemblance of the moth to a humming bird, 140 Interest at- 

 tached to the study of lepidopterous larvae, 140 Larval varia- 

 tions in the same species, 141 Food-plants of the larva, 141 

 The light and dark colored forms of the larva, 142 Its geograph- 

 ical range, 142 Parasite, 142. 



TWO OF OUR COMMON BUTTERFLIES 142 



The archippus butterfly, Danais archippus 143 



Synonymy of its specific name, 143 Its geographical distribution, 

 143 Characters of the Danaidce, 143 Sexual differences, 143 

 Food-plants, 144 Hibernation, 144 Two annual broods, 144 

 Description of the egg, 144 The larva and its larval changes, 

 145 How the horns of the larva become longer at each molt, 

 145 The full-grown larva, 146 Interest attached to the meta- 

 morphoses of insects, 146 How the larva becomes a chrysalis, 

 147 The hardened chrysalis, 147 Duration of the chrysalis state, 

 147 The issuing of the butterfly, 148 Protective colors of in- 

 sects, 148 Nauseous odor of the archippus butterfly in all its 

 stages, 149 The Tachina-parasite of the archippus larva, 149 

 Action of the parasitized larva, 149 How the Tachina larva and 

 other insects prepare the lid of their puparia, 149 Characters 

 of this Tachina-fly, 150 Difficulties of the study of the Tachi- 

 narice, 150 Two forms occurring in Tachina archippivora, 150 



The butterfly often congregating in immense swarms, 151 Prob- 

 able reasons of this assembling in swarms, 152. 

 . The disippus butterfly, Limenitis disippus 153 



Distinguishing characters of the Nymphalidae, 153 Food-plants 

 and geographical range, 153 The egg, 153 Description of the 

 egg, 154 Development of the larva, 154 Description of the ma- 

 ture and young larva, 154 The insect hibernates as young larva, 

 155 Case prepared by the larva for its winter quarters, 155 

 Modifications of the case, 156 Peculiar habit of the autumnal 

 larvae, 156 Parasites, 157 Tachina-fly, 157 The Disippus egg- 

 parasite, 157 The disippus Microgaster, 158. 

 Mimicry as illustrated by these two butterflies, with some remarks 



on the theory of natural selection 159 



Conformity of color between animals and their surroundings, 159 

 Definition of the term ''mimicry," 160 Pungent odor possessed 

 by the Danaidas, 160 Their mode of flight, 160 Protection they 

 derive from their peculiar odor. 161 Pieridce and Danaidte in the 

 valley of the Amazon, 161 Mimetic forms of Pieridce, 161 Ex- 

 planation of the origin of mimetic forms, 162 Mimicry between 

 the archippus and disippus butterflies, 163 The Ursula butter- 

 . fly, 163 Its caterpillar and chrysalis undistinguishable from 

 those of the Disippus, 163 Its imago has no protective color, 

 164 Mr. Bennett's objections to the theory of natural selection 

 producing mimetic forms, 165 Mr. Scudder's objections, 166 

 Discussion of Mr. Scudder's arguments, 167 Mr. Murray's ob- 



