BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 121 



1059. EILEY, C. V. Continued. 



THE APPLE-ROOT PLANT-LOUSE, Schizoneiira lanigera 118 



Three distinct kinds of rots affecting the roots of apple-trees, 

 118 The root-louse the cause of one of these rots, 118 The cause 

 of the other rots still hidden, 119 The root-louse especially in- 

 jurious in southerly latitudes, 119 It occurs also on other parts 

 of the tree besides the root,. 120 Description of the winged louse, 

 120 Fitch's description of the wiuged form refers to another 

 species, 120 The root-louse belongs to the genus Eriosoma, 

 121 Natural enemies, 121 ; Chalcis-fly, 121 ; the root-louse Syr- 

 phus-fly, 121 ; Scymnus cervicalis, 122 Artificial remedies, 123. 



THE WOOLLY ELM TREE LOUSE, Schizoneura riJeyi 123 



Its general appearance and habits, 123 Description of the winged 

 form, 124. 



INSECTS INJURIOUS TO THE GRAPE-VIXE 124 



The new grape-root borer, Prionus laticollis 124 



Reports on the damage caused by it, 124 Description of the larva, 

 126 It belongs probably to the cylindrical Orthosoma, 126 

 Former accounts of the natural history of this beetle, 127 Its 

 injury known for several years, 127 Remedies, 128. 



The grape curculio, Craponius intequalis 128 



Nature of the damage done by it, 128 Its larva, 128 The perfect 

 beetle, 129 No injury done by it in 1868, 129. 



The grape-seed Curculio, Isosoma vitis 129 



General appearance of the maggot, 129 Mr. Saunders' account of 

 the damage done by it, 130. 



The grape-cane gall Curculio, Ampeloglypter sesostris 131 



The gall caused by it, 131 The larva, 131 Its transformation, 

 i31 Description of the beetle, 132 Differences between it and a 

 closely allied species, 132 The gall caused by the punctures of 

 the female beetle, 132 Remedy, 132. 



The grape-vine Fid ia, Fidia viticida 132 



It is very injurious in Missouri, 132 Habits of the beetle, 132 

 Remedies, 133. 



The grape fruit-worm, Eudemis botrana 133 



Amount and extent of the injury caused by it, 133 Characteristics 

 of the larva, 134 Transformations, 134 Description of larva, 

 chrysalis, and imago, 135 Remedies, 135. 



The eight- spotted forester, Alypia 8-maculata 136 



Characteristics of the larva, 136 It is not numerous enough to 

 cause serious injury, 136 Other caterpillars resembling it, 136. 



The grape-vine plume, Oxyptilus periacelidactylus 137 



Work of the larva, 137 Its habits and characteristics, 137 The 

 moth, 137 Remedy, 138. 



The snowy tree-cricket, (Ecanthus niveus 138 



Characteristics of the insects, 138 It is injurious, 138 Nature of 

 the injury caused by it, 138 Remedy, 139. 



THE RASPBERRY GEOMETER, Synchlora rubivoraria 139 



Habits of the larva, 139 Parasite attacking it, 139 Characteris- 

 tics of the moth, 139 Description of the larva, 139 ; of the imago, 

 140. 



THK GOOSEBERRY FRUIT-WORM, Dakruma convolutella 140 



Accounts of the injury caused by it, 140 Habits of the worm, 140 

 The moth, 141 Remedies, 141 Description of larva, chrysalis, 

 and imago, 141. 



