a 44' 



Crataegus, black-bamleil scilc injuring;, 



20 1-. 

 Cratotecluis orgyiao, 138". 

 Creeper, black and white, ill", 

 cristaliis, Prionidus, sec Prionitlus cristatus. 

 Crows, 30'', III". 1 22-, 166^, 2^j-; voracitv, 



26-. 

 Cryptorhyiichus la])athi, 49. 51", 100^-3®. 

 Cryptus grallator, 8"''. 



ininciiis, 158''. 

 Cuckoos. 30', III'', 1 11^, III", 122', 137*, 



black-billed. 27', i663. 



yellow-billed. 27''. 

 Cuculidae, 30'. 



cunea, Hyphantria, 142', 143*. 

 cuproideus. Pteromalus, 138", 139^ 

 Curculionidae. ii**. 

 Currant, insects injurious to: 



scurfy scale, 215'-*. 



willow shoot sawfly, 302*. 



Xylina antennata, 131'. 

 Cybocephalus nigritulus, 23 1^ 

 Cyllene pictus, 256". 264'-66*. 



robiiliae, 49, 51", 93'-97®. 

 Cynipidae, 10". 

 C ynthia moth, 45''. 

 c\nthia, Philosamia, 45*. 

 Cypress, insects injurious to: 



brenthian. northern, 263*. 



tussock moth, white marked, 136®. 

 Cyrtoneura stabulans, 153*. 



dalmanni, Habrolepis, 330, 331'. 



Darkling beetles, 23^-24'. 



Datana inteogerrima, 258*. 303*-5®. 



dcbilis. Spilochalcis. 140^. 



decorus, Arotes, 261". 



Deer moth. 310®. 



definita. Hemerocampa. 133^, 134^. 



Definitions. 8*- 10''. 



delicatus. Apanteles. 138". 



DcnilrDCtonus frontalis, 6". 



piceaperda, 6", 7'. 

 Dorostenus ]jrinnis, 328-. 

 ('.ias])idinarum, Chiloneurus, 212*. 

 Diasjjis carucli, 173". 22</. 

 Dibrachys Ixnichcanus, i27"-28', 140', 140*. 



figure, 139. 

 Diglochis onmivora, iCjO-. 

 Dijjlosis sfi., 140". 



tritici, 6". 

 Diptcra, 11', 21*. 



discoidea, Sajjerda, 256", 269^-70*. 

 dispar, Porthetria, sec Porthetria dispar. 

 disstria, Malacosoma, sec Malacosoma dis- 



stria. 

 Dog day cicada, 174^ 237'*-38*. 

 Dogwood, insects injurious to : 



borers : 



leopard moth, 78''. 

 Xeoclytus erythrocephaUis. 72'^. 

 oak bark beetle, minute. 293'. 

 sugar maple timber beetle, 67''. 



leaf feeder : 



forest tent caterpillar, no", 

 dorsalis, Odontota, 258*, 325*-29-. 

 Dragonflies. 146-. 



Drepanosiphum acerifolii. 172^, i75"-76^ 

 Drosophila, 14". 

 Dryobates pubescens medianus, 28®. 



villosus, 28«, 287-». 



Eggs, 14^-1 S*- 



Elachistus cacoeciae. 140''. 



Elaphidion villosum. 49, 50", 39'-6i^. 



Elasmus atratus, 140*, 145". 



Elm. American, resistance to insect ;»ttack, 



47'- 

 insects injurious to: 49. 

 aphids : 



elm bark aphid, woolly. 172*, 192*. 

 elm leaf aphid. 172''. 176'. 

 woolly. 172^. 177^ 



