x0, 
Sub-family Aphidina (Typical Plant-lice).........cceseeeeseeeeee ones 177 
Lachous dentatus Le B. (Toothed Willow 
ais] OUSe) rarcestceetececcnaes tesectsatqeacestnnwsaccermnas 1i7 
\elanoxanthus salicti Harr. (Willow Grove 
Fe eatateMOSISE))acensccatece wcusstesscarechescesarestscnensciusees 180 
Chaitophorus negundinis Thom. (Boxelder 
Jed Faye Kone Cra) ypenbsen gas nate noceeeeeCey Peep ECUOGOnCO ore e 180 
Aphis cerasifoliz Fitch (Choke-cherry Aphis)... 183 
Aphis crategifoliz Fitch (Thorn-leaf Aphis)..... 183 
Aphis maidis Fitch (Corn Plant-louse).............. 184 
Aphis maidi-radicis Forbes (Corn Root-louse) .. 184 
Aphis brassicz Linn. (Cabbage Plant-louse)..... 185 
Aphis rumicis Linn. (Bean Plant-louse)............. 188 
Aphis mali Fab. (Apple Plant-louse) .............++ 192 
Aphis prunifoliz Fitch (Plum-tree Plant-louse) 195 
Aphis cucumeris Forbes (Melon Plant-louse) .... 196 
Myzus cerasi Fab. (Cherry-tree Plant-louse)..... 198 
Myzus ribis Linn. (Currant Plant-louse) .......... 199 
Myzus persice-niger E. A. Smith (Black Peach- 
SSeS) Sed ackcs s dcedleveh rd cacaaduscutowssescedde: saenvesmends 200 
Nectarophora viticola Thos. (Grape-inhabit- 
IM APUIS)) css. shubbaesaserececateacevncacenrdadveneesa=y-pes" 200 
Nectarophora destructor Johnson (Pea Plant- 
LOUUSE) Sects seeeeee nee seeec cr asenemccectovsesessenscrseccnnees 201 
Nectarophora avenex Fab. (Wheat Plant-louse) 202 
Phorodon humili Schrank (Hop Plant-louse) .... 202 
Remedies:against (Plant lice... .2.- .c-c.0.ceveutstaraccesceiaoosan>s4ieesesee- 204. 
ainily ALEYROID A? (Ale yrodes)..........c..sccceseenesssnesseecses secencoceaes 206 
amily Coccm.® (Scale-insect, Bark-lice, Mealy-bugs) ......s...+ 208 
Classification Of COCCIDAE...........c:cc00. cocsscsescveceessseeccceaes vnseee 210 
Sibstatm ily COCCI AL. seecseac daca squocecesnaeaveses dedopeas scosseadassnnesaecaaes AL AL 
Dactyloptius species ( Mealy-bugs )......00..c0e+ cores 211 
Dactylopiuscitri Risso (Common Mealy-bug).... 212 
IRETMECIESeeree Nera teee cette races orcrae =< Jcensnneoaasnsdenetevocta-serssieceses 212 
Pseudococcus aceris Geoff. (Maple Pseudo- 
COCCUS))sessec cease smectcracesedesncnsitecseusecescemsaqcsacenn. 213 
Sub-farily Lecanina::....:.0-.00scvescsecessdascccevecsccconssaserssacese: nooase 216 
ClassiiicaMonyOlmVeECa ia: suciosecteccsestccnvessccnastesc senses: 216 
Lecanium cerasi.c:: Fitch (Cherry-tree Scale).... 217 
Lecanium nigrotasciatum Perg. (Peach Le- 
GAMIMEMN oe teces senteuneta le teuaeeicerscarachavycesrseserseecess 218 
Lecanium ribis Fitch (Currant Scale)................ 218 
Pz!vinaria innumerabilis Rathy. (Cottony 
Seale) Maries sactvsstaces cauhestarennassoncestesdesdeeceel cosee- 219 
