Hoplocampa—Continued 
montanicola, 465 
oskina, 464 
pallipes, 465 
hopper, three-cornered alfalfa, 71 
Hormaphis— 
hamamelidis, 85 
spinosus, 85 
horned passalus, 119 
hornets—493 
bald-faced, 494 
giant, 494 
horntails—465, 471 
black and red, 466 
blue, 466 
white-horned, 466 
yellow-horned, 466 
Hubbellia marginifera, 59 
Hyalophora cecropia, 298 
Hylastes— 
exilis, 252 
porculus, 252 
salebrosus, 252 
tenuis, 252 
Hylecoetus lugubris, 126 
Hylemya platura, 427 
Hylobius— 
aliradicis, 217 
congener, 217 
pales, 213 
pinicola, 216 
radicis, 215 
rhizophagus, 216 
warreni, 216 
Hylocurus— 
bicornis, 252 
biorbis, 252 
harnedi, 252 
langstoni, 253 
rudis, 252 
spadix, 252 
Hylotrupes bajulus, 22, 206 
Hylurgopinus rufipes, 250 
Hylurgops pinifex, 252 
Hymenoptera, 18, 19, 28, 28, 31, 32, 
33, 34, 36, 39, 423, 424, 431, 475, 
476, 477 
Hyparpax— 
aurora, 317 
perophoroides, 317 
Hyperaeschra stragula, 313 
Hyperaspis— 
congressis, 105, 123 
signata, 105 
Hyperetis amicaria, 342 
Hyphantria— 
cunea, 306 
textor, 306 
Hypoderma— 
bovis, 431 
lineatum, 431 
Hypothenemus— 
chapuisi, 254 
dissimilis, 254 
eruditus, 254 
georgiae, 254 
interstitialis, 254 
628 
Hypothenemus—Continued 
obscurus, 254 
quercus, 254 
rotundicollis, 254 
salicis, 254 
Hypoxylon, 162 
Hypulus concolor, 125 
Hyssopus, 474 
Ibalia— 
anceps, 478 
ensiger, 478 
maculipennis, 478 
scalpellator, 478 
Ibaliidae, 478 
Icerya, 95 
Ichneumonidae, 468, 469, 470 
Ichneumonoidea, 468 
ichneumons, 470, 476 
Ichthyura— 
albosigma, 311 
apicalis, 311 
brucei, 311 
inclusa, 310 
strigosa, 311 
Idiocerus, 69 
Incisitermes— 
schwarzi, 46, 53 
snyderi, 46 
Incurvariidae, 413 
Ips—21, 450 
avulsus, 260 
borealis, 262 
calligraphus, 260, 502 
grandicollis, 260, 502 
latidens, 262 
perroti, 262 
perturbatus, 262 
pini, 262, 502 
Iridomyrmex— 
humilis, 492 
pruinosus, 492 
Isoptera, 22, 31, 39, 45 
Ithycerus noveboracensis, 209 
Itoplectis— 
4-cingulatus, 471 
conquisitor, 412, 471 
viduata, 471 
Ixodes scapularis, 9 
Janetiella coloradensis, 420 
Janus abbreviatus, 467 
Japanagromyza viridula, 427 
Kalotermes approximatus, 46, 53 
katydids—59 
angular-winged, 59 
broad-winged, 59 
fork-tailed bush, 59 
Kermes— 
galliformis, 97 
kingit, 97 
pettiti, 97 
pubescens, 97, 475 
trinotatus, 97 
Kermococcidae, 97 
