XVIII 
LIST OP GENERA AND SPECIES. 
Callipterus quercicola, Monell, viii, 199. 
walshi, Monell, viii, 196. 
ulmifolii, Monell, viii, 196. 
mucidus, Fitch, viii, 172. 
Pemphiginae, viii, 122, 
Schizoneurini, viii, 125. 
Schizoneura, viii, 125, 
lanigera, Hausmann, i, 55 (Pemphigus 
pyri); viii; 126. 
rileyi, Thos., viii, 136. 
pinicola, Thos., viii, 137. 
panicola, Thos., viii, 138. 
querci, Fitch, viii, 139. 
tessellata, Fitch, viii, 139. 
imbricator, Fitch, viii, 139. 
fagi, Linn., viii, 140. 
strobi, Fitch, viii, 140. 
ulmi, Linn., viii, 140. 
fungicola, Walsh, viii, 141. 
caryae, Fitch, viii, 141. 
cornicola, Walsh, viii, 141. 
americana, Riley, viii, 202. 
Pemphigini, viii, 145. 
Pemphigus, viii, 146. 
fraxinifolii, Riley, viii, 146,210. 
rubi, viii, 147. 
populicaulis, Fitch, iv, 193: viii, 149. 
formicarius, Walsh, viii, 150. 
formicetorum, Walsh, viii, 150. 
pseudobyrsa, Walsh, viii, 151. 
vagabundus, Walsh, viii, 151. 
rhois, Fitch, viii, 152. 
ulmi-fusus, Walsh, Viii, 153.1 
popularia, Fitch, viii, 153. 
populi-globuli, Fitch, viii, 153. 
populi-venae, Fitch, viii, 154. 
acerifolii, Riley, viii, 209. 
populi-monilis, Riley, viii, 205. 
populi-ramulorum, Riley, viii,209. 
populi-transversus, Riley, viii, 208. 
Hormaphis spinosus, Shimer, viii,206. 
Glyphina, viii. 142. 
ulmicola, Fitch, viii, 142,204. 
eragrostidis, Middleton, viii, 144. 
Vacuna, viii, 145. 
Chermesinae, viii, 155. 
Chermes, viii, 155, 
pinifoliae, Fitch, viii, 156. 
laricifoliae, Fitch, viii, 156. 
Adelges abieticolens, Thos., viii, 156 (Cher¬ 
mes abieticolens). 
Phylloxera, viii, 157. 
vastatrix, Planchon, i. 21 (Dactylo- 
sphaera vitifoiiae); viii, 158 (Phylloxera 
vitifoliae). 
earyaeeaulis, Fitch, viii, 160. 
caryaefoliae, Fitch, viii, 161. 
caryaevenae, Fitch, viii, 162. 
caryae-globosa, Shimer, viii, 163. 
rileyi, Licht., viii, 163. 
caryae-semen, Walsh, i, 23 (Dactylo- 
sphaeracaryae-semen). 
caryae-globuli, Walsh, viii, 164. 
spinosa, Shimer, viii; 164. 
Phylloxera caryae septa, Shimer, viii. It 
forcata, Shimer, viii. 164. 
depressa, Shimer, viii, 164. 
cornica, Shimer, viii, 164. 
caryae-gummosa, Riley, viii, 164. 
caryae-ren, Riley, viii, 164. 
caryae-fallax, Walsh, viii, 164. 
castaneae, Hald., viii, 164. 
Tychea, viii, 167. 
erigeronensis, Thos., viii, 168. 
panici, Thos., viii, 169. 
Rhizobiinae, viii, 164. 
Rhizobius, viii, 165. 
lactucae, Fitch, viii, 165. 
poae, Thos., viii.166. 
Coccid^:. ' 
Chionaspis furfureus, Fitch,i, 53 (Aspidi 
harrisib. 
pinifoliae, Fitch, ii, 83 (Mytilaspis r 
foliae); iii, 161 (M. pinifoliae). 
salicis, Linn., i, 40 (Aspidiotus sal 
nigrae). 
Mytilaspis pomorum, Bouche, i,34 (A 
diotus conchiformis); ii, 24 (Mytila 
conchiformis); iii, 159 (M. conehiform: 
Pulvinaria innumerabilis, Rathv., vi 
(Lecanium acericola). „ 
ORTHOPTERA. 
(iv, 25; v,25; vi,70.) 
Acbidid^:. 
(ix, 73-140, [Illinois species; synopsis, s 
nymy, descriptions, etc!.) 
Mermiria bivittata, Serv., ix,97. 
Truxalis brevicornis, Linn., ix, 97. 
Chloealtis viridis, Scudd., ix,99. 
conspersa, Harr., ix,99. 
Syrbula admirabilis, Uhl., ix, 100. 
Stenobothrus maculipennis, Scudd., h 
curtipennis, Harr., ix,104. 
Stetheophyma lineata, Scudd., ix.104. 
Tragocephala viriaifasciata, Harr., i> 
Tomonotus sulphureus, Fabr., ix, 107. 
sordida, Burm., ix,107. 
nietanus, Sauss., ix, 108. 
(Edipoda aequalis. Say, ix,109. 
collaris, Scudd , ix, 110. . 
Carolina, Linn., ix, 111. 
belfragii, Stal.. ix,111. 
Trimerotropis verruculata, Scudd., ix, 
maratima, Harr., ix, 113. 
Mestobregma cincta, Thos., ix, 113. 
Hippiscus neglectus, Thos., ix, 114. 
corallipes, var. rugosus, Scudd., ix 
discoideus, Serv., ix, 116. 
phoenicopterus, Burm., ix,117. 
Camnula pellucida, Scudd., ix,U8. 
Pezotettix unicolor, Thos., ix, 118. 
minutipennis, Thos., ix, 119. 
