BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 177 



1363. EILEY, C. V. Continued. 



BENEFICIAL INSECTS. 



THE UNADORNED TIPHIA OR WHITE GRUB PARASITE, Tiphia inornata .. 123 

 Other enemies of the white-grub, 123 Cocoon ami larva of Tiphia, 

 123 It is undoubtedly a parasite of the white-grub, 124 Char- 

 acters of the genus Tiphia, 124 Habits of Tiphia femorata, 124 

 Habits of the Tiphia larva, 124 Characters of the Uuadbrned 

 Tiphia, 125 Beetle parasitic upon it, 125 Description of larva 

 and imago, 126 The species has been described under three dif- 

 ferent names, 126. 



INNOXIOUS INSECTS. 



THE DOMINICAN CASE-BEARER, Coscinoptera dominicana 127 



Characters of the beetle, 127 Mode of oviposition, 128 Oviposi- 

 tion of Chlamys plicata, 128 The youug larva and its food- 

 habits, 129 The case of the larva, 129 Characters of the larva, 

 130 Time required for its development, 130. 



THE YUCCA MOTH, Pronuba yuccasella 131 



Its natural history completed, 131 Description of the chrysalis, 

 131 Hatching of the chrysalis, 132 Method of oviposition, 133 

 Oviposition is followed by pollination, 134 The egg in the young 

 fruit and the embryo larva, 134 It is the only insect that can 

 \vell fertilize the Yuccas, 135. 



HACKBERRY BUTTERFLIES . 136 



The European purple Emperor, 136 Insufficient former account of 

 their earlier states, 136 Species of Celtis in Missouri, 137. 



The eyed Emperor, Apatura celtis 137 



The full-grown larva, 137 Habits of the larva, 138 Pupation, 

 138 The imago, 139 The egg and the young larva, 139 Two 

 annual broods, 139 Hibernation of the young larva, 140. 



The tawny Emperor, Apatura dyton 140 



How it differs from the eyed emperor, 140 The egg, 141 Larval 

 changes and habits, 141 Egg parasite, 142. 



Bibliographical 142 



The generic name, 142 The specific names of the two species, 

 143 Fabricius's original description of lycaon and herse, 144 

 Other species of the genus in the United States, 145 On the 

 validity of alicia, 145 Descriptions of the earlier states of both 

 species, 146 Their popular names, 148 The scientific specific 

 names, 149. 



KATYDIDS 150 



General considerations, 150 Spring in Europe and America, 151 

 Stridulating noise produced by crickets and grasshoppers, 152 

 Sounds inaudible to man, 152 Grasshoppers, katydids, locusts, 

 153 Habits and general appearance of our katydids, 154 They 

 oviposit above ground, 154 Their ovipositors not rudimeutal, 

 155. 



The angular-winged katydid, Microcentrum retinerve 155 



It is the most common species in Missouri, 155 General character 

 of the insect, 155 The eggs, 155 Erroneous statement concern- 

 ing the egg, 156 How the female deposits the eggs, 156' Num- 

 ber of eggs laid by the female, 158 Hatching of the larva, 158 

 Food of the larva, 158 Changing from the pupa to the perfect 

 12ENT 



