X 
INDEX. 
S. - Continued. 
Page. 
verbenae. 63 
viticola . 55 
Siphonphorini (Section). 46 
smithiae. 200 
Snow-ball Aphis. 96 
Snow-berry Aphis. 99 
solani. 73 
solidaginis. 49 
sonchi. 60 
spinosa. 164 
spiir isns . 206 
Spotted Willow Aphis. 116 
Sprue,-tree Lachuns. 117 
strobi .. .. 117 
XT, 
, . Page. 
ulmanae. 64 
ulmi. 119, 136, 140, 146 
ulmicola. 89, 111. 142, 144, 204 
ulmifolii. 195 , 89C 
ulmi-fusus. ]53 
urticaecolens. is 
Y, 
Vacuna. 142 , 145 
Vacunini. 124 
Vagabond Gall-louse . 151 
vagabunda. 15 
St J -hnswort Plant-louse. 108 
Sum c Gall-louse. 152 
Supplement ' 1^5 
vagabundus. 146, 151 
vastatrix. 158 
venusta. i 3 q 
Synopsis of the Families of Plant-lice. 10 
of the Subdivisions and Genera 
of Aphidinae. 39 
of Chermesinae. 41 
of Pemphiginae. 41 
of Rhizobinae 41 
verbenae. 63 
verna lis. 14 
vernoniae. 97 
verticolor . 211 
viburnaphis. 175 
viburni . 96 
Synoptical table of the Sub-families 
(Aphididae). 39 
Svrnhus. itq 
vicae. 
viminalis . 165 , 200 
viticola . 105 
liv Root-louse... 131 
vitifoliae. 158 
T, 
Tamarack Aphis. 117 
tanaceti. 69 
ressellata. 139 
Tetraneura ulmi. 146 
Thelaxes. ... 140 
vitis. 55 
vitisana. . 158 
w. 
walshii . 196, 197 
Weeping Golden-eye. 179 
White Pine Lachnus. 117 
ulmicola. 142, 144, 204 
thlaspeas . >-8 
Thorn-leaf Aphis. 101 
tiliae.188 
Touch-me-not Aphis. 98 
Toxares triticaphis. 176 
Trioxys cerasaphis. 176 ' 
populaphis. .. 176 
salicaphis. 176 
tripunctata. 18 
triticaphis. 17 a 
Willow Plant-louse 115 
Wooly Aphis of the Apple-tree.126 
natural enimies of. 131 
Remedies for . 132 
Wooly Aphis of the Elm-tree.136 
of the Oak. 139 
Wooly Plant-lice (Schizoneura).125 
Xanthelis. 211 
Trombidium bulbipes. 108 
tuiipae. * an 
Tychea. 138 
erigeronensis. 100 
panici. 138 
Yellow-headed Golded-eye . 178 
ERRATA. 
Page 9, for Hemoptera read Hemiptera. 
Page 11, for Hemoptera read Hemiptera. 
