Corythucha—Continued 
pyriformis. See (0. 
prunt. 
salicis. See ©. molli- 
cula. 
alii, 116-117 
Coscinoptera dominicana, 
278 
Cossidae, 349, 497-502 
Cossoninae, 205, 211, 292— 
293 
Cossonus— 
corticola, 292 
impressifrons, 292 
impressus, 292 
platalea, 292 
Cossula magnifica, 501- 
502 
Cosymbia  pendulinaria, 
426 
Cotalpa lanigera, 181-182 
Cotinus— 
habits and injury, 161, 
184 
nitida, 184 
Crabro davidsoni. See 
Crossocerus parkeri. 
Crabs, 60 
Crawfish, 60 
Crepidodera, 277 
Cressonia juglandis, 373, 
376 
Crickets— 
black-horned tree, 104 
camel, 100 
cave, 100 
characteristics, 94, 102— 
103 
four-spotted tree, 104 
mole, 102-104, 633-634 
mormon, 101 
northern mole, 103, 633— 
634 
predators of, 94 
snowy tree, 104 
southern mole, 104 
tree, 94, 102, 104-105 
Criocephalus obsoletus, 
237 
Croesus latitarsus, 580 
Crossocerus parkeri, 682, 
633, 634 
Crustacea, 60-61, 66-69 
Cryphalus— 
balsameus, 329 
frazeri, 329 
mainensis, 298, 329 
rubentis, 329 
Cryptocephalus— 
basalis, 278 
mutabilis, 278 
Cryptocleptes dislocatus, 
298, 326 
Oryptococcus fagi, 140, 142 
Cryptorhynchus— 
bisignatus, 287 
fallax, 287 
fuscatus, 287 
INDEX 
Cryptorhynchus—Con. 
lapathi, 200, 286-287 
parochus, 287 
Cryptostemmatidae, 112 
Cryptotermes. See Kalo- 
termes. 
Crypturgus— 
alutaceus, 313 
atomus, 313 
corrugatus, 3138 
Cucujidae, 210-211 
Cucujus clavipes, 204, 211 
Culex— 
pipiens, 526-527 
quinquefasciatus, 527 
restuans, 506 
Culicidae, 526-527 
Culicoides, 527, 528 
Cupes concolor, 158, 159 
Cupesidae, 158 
Cureulio— 
auriger, 288, 289 
baculi, 289 
caryae, 289 
confusor, 289 
habits, 281 
nNaASiCUS, 288, 289 
obtusus, 289 
proboscideus, 289 
rose, 292 
Curculionidae, 
294 
Cuterebra cuniculi, 530 
281-292, 
-|Cutworms, 32-33, 349, 393-— 
394 
Cychrus. See Scaphino- 
tus. 
Cyclorrhapha, 507-508 
Cymatodera— 
bicolor, 198, 199 
inornata, 198, 201 
undulata, 201 
Cynipidae, 593-600 
Cynipinae, 593-600 
Cynipoidea, 592-600 
Cyrtophillus —perspiciila- 
tus, 101 
Dasyhelea, 528 
Dasyllis. See Laphria. 
Dasyneura— 
communis, 510 
pseudacaciae, 518 
Dasytes, 205 
Datana— 
angusti, 345, 398 
characteristics, 397-398 
contracta, 400 
drexeli, 398 
integerrima, 399-400 
larval habits, 348 
major, 398-399 
ministra, 398 
parasites of, 531 
perspicua, 399 
Defects, prevention in liv- 
ing wood, 38 
Defoliation, effect of, 8, 15, 
18 
665 
Deidamia inscriptum, 377 
Deilinea erythremaria, 
428429 
Dendrobiella— 
asperum, 226 
quadrispinosa, 226 
SeEriCanNs, 226 
Dendroctonus— 
frontalis, 10, 58, 
295, 298, 315-318 
fungi and decay in trees 
killed by, 197, 237 
importance of, 4, 8, 301, 
302 
insects associated with, 
198, 313 
monticolae, 605 
piceaperda, 318-319 
predators of, 197-198 
simplex, 319, 574 
species, 315-320 
starvation of, 237 
terebrans, 295, 298, 301, 
320 
valens, 295, 
319-320 
Dendroides 
ae, 
Dendrotettiz quercus, 99, 
100 
Deretaphrus oregonensis, 
208 
Dermacentor 
andersoni, 64-65 
variabilis, 64-65 
Dermanyssus gallinea, 63 
Dermestes— 
lardarius, 204 
nidum, 202 
vulpinus, 204 
Dermestidae, 203-204 
Derobrachus brunneus, 
See Orthosoma. 
Desmia funeralis, 444 
Desmocerus— 
palliatus, 244-245 
piperi, 230 
Deuteronomos magnarius, 
436-4387 
Diabrotica, 278 
Diapheromera— 
blatchleyi, 98 
femorata, 97-98 
velii, 98 
Diaspis carueli, 151 
Diaspididae, 147-152 
Dibrachys cavus, 615-616 
Dicaelus purpuratus, 157 
Dicentria lignicolor, 404 
Dicerca— 
caudata, 195, 197 
divaricata, 195 
lurida, 195 
obscura, 195 
pugionata, 195 
punctulata, 195 
scobina, 195 
218, 
298, 
301, 
canadensis, 
