INDEX TO INSECTS BY HOST PLANTS 
By J. V. SCHAFFNER, JR., Entomologist, Division of 
Forest Insect Investigations, Bureau of Entomology and 
Plant Quarantine, Agricultural Research Administration 
This index by host plants has been prepared to enable foresters 
and others not trained in entomology to identify an insect that is 
causing damage to a particular kind of tree or shrub. Only those 
insects having definite host plants are included. Parasitic and 
predaceous insects and those species for which no host plant is given 
can be found in the general index. 
Under each host plant the insects are grouped according to the 
type of injury that they cause—as bark feeders, borers, flower feeders, 
gall insects, leaf feeders, mites, mound-building ants, root feeders, 
and sucking insects. No attempt has been made to separate the 
insects into orders or genera. The common names of the insects 
are used, and for those not having a common name the scientific 
name is given. Where more than one page reference is given for an 
insect, the page on which the insect is discussed is in boldface type. 
Acacia— 
borer, bark— 
Cryptocleptes dislocatus, 326 
borers, wood— 
huisache girdler, 257 
mesquite borer, 242 
Thysanoes fimbricornis, 326 
sucking insects— 
cottony-cushion scale, 139, 140 
oleander scale, 143 
Ailanthus— 
Atteva aurea, 487 
cynthia moth, 377, 378 
Alder— 
borer, root— 
Sthenopis argenteomaculatus, 505 
borers, wood— 
alder borer, 280, 232, 267 
Dicerca lurida, 195 
pugionata, 195 
fig-tree borer, 262 
poplar and willow borer, 286-287 
Ptychodes, 233, 262 
Sinodendron rugosum, 170 
leaf feeders— 
beetles— 
alder flea beetle, 277 
Attelabinae, 292 
Chrysomela interrupta, 274 
tremulae, 274 
cottonwood leaf beetle, 274 
leaf-rolling weevils, 292 
moths— 
Acrobasis rubrifasciella, 451 
Acronicta distans, 392 
impressa, 392 
Apatelodes torrefacta, 420 
birch casebearer, 491 
chain-spotted geometer, 436 
gypsy moth, 408-412 
Hyperetis amicaria, 433 
smeared dagger moth, 393 
spotted tussock moth, 386 
Alder—Continued 
leaf feeders— Continued 
sawflies— 
birch leaf-mining sawfly, 566 
elm sawfly, 562-564 
European alder leaf miner, 569 
giant American sawfly, 562-564 
Pteronidea alnivora, 576 
striped alder sawfly, 572 
sucking insects— 
aphids— 
Myzocallis alnifoliae, 110, 129 
woolly alder aphid, 110, 132 
lacebugs— 
alder lacebug, 117 
leafhoppers— 
Alebra, 120 
Empoasca, 120 
Erythroneura, 120 
Oncopsis, 120 
Typhlocyba, 120 
Psylia floccosa, 124 
galeaformis, 124 
Andromeda— 
Datana major, 398 
Angelica, Japanese (Aralia elata)— 
borer, wood— 
Sinodendron rugosum, 170 
sucking insect— 
cottony maple scale, 144 
Apple— 
borers, bark and phloem— 
beetles— 
Agrilus vittaticollis, 192 
Scolytus sulcatus, 312 
moths— 
Marmara spp., 492 
borer, fruit— 
apple maggot, 524 
borers, wood— 
beetles— 
apple twig borer, 226 
fiatheaded apple tree borer, 31, 194 
Aymenorus spp., 215 
roundheaded apple tree borer, 233, 264 
