664 
Chrysocharis laricinellae, 
490, 567, 616-617 
Chrysochlamys, 540 
Chrysoclista linneella, 456 
Chrysomela— 
interrupta, 274-275 
scripta, 274-275 
tremulae, 274-275 
Chrysomelidae— 
characteristics, 271-272 
key to larvae, 273 
species, 273-279 
Chrysomphalus— 
obscurus, 149 
tenebricosus, 149 
Chrysopa oculata, 82 
Chrysopidae, 17, 88 
Chrysopila ornata, 506 
Chrysopilus, 5386 
Chrysops, 529 
Chymomyza amoend, 539 
Cicada— 
killer, 632-633 
periodical, 124, 125 
‘Cicadella. See Neokolla. 
Cicadellidae, 120 
Cicadidae, 123-124 
Cicindela, 157-158 
Cicindelidae, 157-158 
Cicinnus melsheimeri, 488 
Cimberis, 292 
Cimbex americana, 562- 
564 
Cimbicidae, 562-564 
Cinara— 
abietis, 127 
curvipes, 127 
laricis, 127 
strobi, 127-128 
Cincticornia pilulae, 517 
Cingilia catenaria, 481, 
436 
Cinyra gracilipes, 197 
Cis, 197 
Cisidae, 197 
Cistelidae. 
dae. 
Citheronia— 
regalis, 383, 384 
sepulchralis, 383-384 
Citheroniidae, 348, 381- 
385 
Cladiinae, 570-571 
Cladius isomerus, 571 
Clavigerus— 
populifoliae, 129 
salicis, 129 
smithiae, 129 
Cleptes, 629 
Cleridae— 
characteristics, 17, 197— 
198 
key to more common 
genera, 199 
species, 199-203 
Climatic influences, 18, 21 
Clinidium sculptile, 158- 
159 
See Alleculi- 
INDEX 
Clistogastra— 
characteristics, 
591-592 
families, genera, 
species, 592-637 
542, 
and 
key to superfamilies, 
592 
Clusiidae, 541 
Clusiodes. See Sobarce- 
phala. 
Cnidocampa  flavescens, 
441-442, 532, 629 
Coccidae, 143-147, 614 
Coccinella— 
novemnotata, 210 
transversoguttata, 210 
Coccinellidae, 17, 209-210 
Coceoidea, 1389-153 
Cochliomyia americana, 
538 
Cockroaches, 94, 95 
Coeloides dendroctoni, 605 
Coenopoeus palmeri, 242 
Colaspis pini, 273-274 
Coleomegilla maculata, 
210 
Coleophora— 
caryaefoliella, 489-490 
fletcherella, 489-490 
laricella, 490, 491, 606- 
607, 616 
limosipennella, 490-491 
salmani, 491 
Coleophoridae, 
488—491 
Coleoptera— 
characteristics, 153 
families and_= species, 
156-348 
keys to larvae of more 
important families, 
154-156 
parasites of, 531, 533, 
535, 601, 605, 609, 611, 
628 
predators of, 157, 159- 
166, 197-203, 205-206, 
208, 531, 533-536, 632 
Collembola, SO 
Colopha ulmicola, 130-131 
Colopterus— 
truncatus, 208 
unicolor, 208 
Coloradia pandora, 618 
Colydiidae, 211, 212 
Colydium lineola, 211 
Compsilura concinnata, 
59, 411, 414, 416, 532, 
603, 631 
Coneworm, spruce, 451 
OConistra, 394 
Conophthorus— 
characteristics, 827-828 
coniperda, 301, 328 
resinosae, 328 
taedae, 295, 328 
virginianae, 328 
347, 348, 
Conopia— 
acerni, 462-463 
corni, 463 
rhododendri, 463 
scitula, 463-464 
Conopidae, 530, 531 
Conotrachelus— 
affinis, 289 
anaglypticus, 289 
aratus, 289 
habits, 281, 289 
juglandis, 289 
retentus, 289 
Contarinia— 
canadensis, 514 
coloradensis, 514 
juniperina, 514 
pyrivora, 515-516 
tiliarum, 520 
virginianiae, 515 
Control measures— 
bark beetle, 47-51 
borers, 24-28, 38-47 
defoliators, 34-35 
insecticidal, 51—57 
insects attacking shade 
and ornamental trees, 
20—23 
insects in nurseries and 
young plantations, 
28-38 
natural, 11-18, 57-60 
silvicultural, 18-20 
Copidosoma nanellae, 614 
Cordyceps, 172 
Coreidae, 113, 118-119 
Corrodentia, 81, 618 
Corthylus— 
columbianus, 301, 338 
punctatissimus , 3388-339 
Corticeus— 
cavus, 216, 218, 219 
glaber, 218 
parallelus, 218 
piliger, 218 
tenuis, 218 
thoracicus, 218 
Corticotomus cylindricus, 
202, 205 
Corydalus cornutus, 81-88 
Corythucha— 
aesculi, 117 
arcuata, 116 
arcuata mali, 116 
associata, 117 
betula. See C. pallipes. 
canadensis, See C. mol- 
licula. 
celtidis, 117 
ciliata, 115-116 
cydoniae, 117 
cyrta, See C. pallipes. 
elegans, 117 
juglandis, 117 
mollicula, 116 
pallipes, 117 
pergandei, 117 
pruni, 117 
