22 INDEX TO MISSOURI ENTOMOLOGICAL REPORTS. 



Page. 

 Insects injurious to the Grape-vine Continued. 



THE COMMON YELLOW BEAR 68 



How the youug larvse differ from the mature larva of the Grape-vine Plume, 

 68 Food-plants, 68 Color variations in the larva?, 69 The chrysa- 

 lis, 69 The imago, 69 Parasites, 69 Remedy, 69. 

 THE SMEARED DAGGER 70 



The larva is polyphagous, 70 Characters of larva, pupa, and imago, 

 70 Remedy, 70 Parasites, 71 Description of imago and larva, 71 ; 

 of the pupa, 72. 

 THE PYRAMIDAL GRAPE-VINE WORM 72 



Distinguishing characters of the Worm, 72 Its food-plants, 72 Its trans- 

 formations, 72 It is single or double-brooded according to latitude, 

 73 Its closely allied congener in Europe, 73 Remedies, 73 Descrip- 

 tion of the larva, 73; of pupa and imago, 74 How it differs from 

 Amplupyra pyramided, 74 Description of larva and imago of the Spat- 

 tered Copper Underwing, 75. 

 THE GRAPE-ROOT BORER 75 



Its distribution, 75 Distinguishing characters of the larva, 76 Its 

 transformation, 76 Characters of the moth, 76 Description of the 

 imago and its sexual differences, 76 Work of the larva on grape- 

 roots, 77 Remedies, 77. 

 THE SPOTTED PELIDXOTA 77 



It is usually not injurious, 77 The larva and its habits, 78 The beetle, 



78 Description of the larva, 78. 

 THE GRAPE-VINE FLEA-BEETLE 79 



It is well-known to the grape-grower in Missouri, 79 Its distribu- 

 tion and food-plants, 80 Hibernation, 80 Damage done by the beetle 

 in spring, 80 The eggs, 80 Damage caused by the larv;p, 80; their 

 transformation, 80 Remedies, 80 Description of the larva and 

 pupa, 81. 

 THE GRAPE-VINE COLASPIS 81 



Fitch's account of the insect, 82 Varieties of the beetle, 82 The larva 

 in all probability attacks sometimes that of the Leaf-folder, 82 It lives 

 on the roots of the Strawberry, 82 Larva of the European Colaspis 

 larbam, 82 Difference in habits of larvie of allied species, 83 Singu- 

 lar characters of the larva of the Grape-vine Colaspis, 83 Work of the 

 larva on Strawberry roots, 83 Remedy, 84 Description of the 

 larva, 84. 

 THE GRAPE-LEAF GALL-LOUSE 84 



Its life-history not yet fully studied, 84 Previous accounts of the insect by 

 Fitch, Shimer, and Walsh, 85 The root disease in France, 85 The 

 Phylloxeravastatrix recognized as the cause of this disease, 85 Identity 

 of the gall-louse with the root-inhabiting insect, 86 The American and 

 European insects are identical, 86 Remedies tried in France, 86 The 

 disease directly caused by the Phylloxera, 87 Injury done by the Phyl- 

 loxera in Missouri, 87 Forming of the gall, 87 Propagation of the 

 lice and multiplication of the galls, 88 The gall-lice descend in the 

 latter part of the season to the roots, 88 Change of the insect after 

 passing from the leaves to the root, 88 Questions still to be settled in 

 the life-history of the Phylloxera, 83 Rare occurrence of the winged 

 form, 89 The insect can be transported from one place to another on 

 roots, 89 It hibernates on the roots, 89 Grape-vines that should be 

 planted, 89 Number of indigenous species of the Grape-vine. 90 

 Grape-vines which are most seriously infested with the Grape leaf- 

 louse, 90 Danger in planting the Clinton among other grapes, 91 In- 



