a 441 



Crataegus, black-banded scale injuring, 



20I-. 



Cratotechus orgyiae, 138''. 

 Creeper, black and white, iii*. 

 cristatus, Prionidus. see Prionidus cristatus. 

 Crows, 30", III". 122", i66'\ 237-; voracity, 



262. 



Cryptorhynchus lapathi, 49, 51", 100^-3°. 

 Cryptus grallator, 87''. 



nuncius, i'^^^'. 

 Cuckoos, 3o\ iir'', iii^, in'', 122^ 137*, 

 2373. 



black-billed, 27', 166^. 



yellow-billed, 2/°. 

 Cuculidae, 30^ 



cunea, Hyphantria, 142*, 143^. 

 cuproideus, Pteronialus, 13S''', 139''. 

 Curculionidae, 11*. 

 Currant, insects injurious to: 



scurfy scale. 215". 



willow shoot sawfly, 302'*. 



Xylina antennata, 131". 

 Cybocephalus nigritulus, 231^. 

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



robiniae, 49, 51'', 93'-97®. 

 Cynipidae, 10'. 

 Cynthia moth, 45''. 

 c}nthia, Philosaniia. 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*. 



dcfinita. Hemerocampa, 133". 134''. 



Definitions, 8*- 10''. 



delicatus, Apanteles, 138". 



1 )endroctonus frontalis. 6*. 



piceaperda, 6*, 7'. 

 Derostenus primus, 328". 

 (liaspidinarum, Chiloneurus, 212®. 

 Diaspis carueli, 173*. 22()^. 

 Dibrachys boucheanus. I27®-28^ 140^ 140*. 



figure, 139. 

 Diglochis onniivora, 166-. 

 Diplosis sp.. 140'"'. 



tritici, 6-. 

 Diptera, 1 1', 21*. 



discoidea, Saperda, 256*, 269*-70''. 

 dispar, Porthetria, sec Porthetria dispar. 

 disstria, Alalacosoma, sec Malacosonia dis- 



stria. 

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

 Dogwood, insects injurious to: 



borers : 



leopard moth, 78^'. 

 Xeoclytus erythrocephalus. 72". 

 oak bark beetle, minute, 2f)^''. 

 sugar maple timber beetle. 67*. 



leaf feeder : 



forest tent caterpillar, iio'-'. 

 dorsalis, C^lontota, 238'*, 325'-29-. 

 Dragonflies. 146". 



Drepanosiphum acerifolii. 172''. i73"-76^. 

 Drosophila, 14'"'. 

 Dryobates pubescens medianus, 28**. 



villosus, 28«, 287^ 



Eggs, 1 4^-1 S'*- 



Elachistus cacoeciae, 140*. 



Elaphidion villosum. 49. 50', 59^-61^. 



Elasmus atratus, 140"', 145''. 



Elm, American, resistance to insect attack, 



insects injurious to: 49. 

 aphids : 



elm bark aphiil, woolly. 172", 192''. 

 elm leaf aphid, 172''. 176'. 

 woolly. 172^, 177^. 



