INDEX. 5 



Lytta murina 98 



'< atrata 98 



" marginata 98 



Madams vitis 131 



Mantis Carolina 169 



Many-banded Robber 114 



Maple — Flat-headed borer in 47 



Maple — Bag-worm on 150 



Margined Blister-beetle 98 



May Beetle 156 



Meromtjza Americana 159 



Microgaster., 89 



" gelechia '. 178 



Murky Ground-beetle 98 



Natural history and transformations of the Periodical Cicada 22 



" " of twelve cut-worms 67 



Noctua clandestine 79 



Norway Spruce —Bag-worms on , 150 



Noxious insects 7 



Oak — Flat-headed borer in 47 



Oak stumps— Grape-root borer in 128 



CEcanthm niveus 138 



(Estrus ovis 161 



CEta compta. 151 



Oberea ocellata 179 



Orgyia leucostigma 144 



Orthosoma cylindricum (?) , 124 



Osage orange — Bag-worm on 150 



" " — Grape-root borer in 126 



Other cut-worms 87 



Oyster-shell bark-louse 7 



Parasite of the Colorado Potato-beetle Ill 



Pasimachus elongatus 115 



Peach borer 47 



" —Flat-headed borer in 47 



" — Curculio on 50 



Pear — Bark lice on 15 



" — Grape-root borer in 128 



" — Bag-worm on 150 



" — Cut-worms on 70 



Pempelia grossularia 140 



Pemphigus vagabundus ,.. 112 



Pennsylvania Soldier-bug 57 



" Ground-beetle 59 



Penthina vitivorana 133 



Periodical Cicadas 18 



" " — 17 and 13-year broods 18 



" " —Two distinct forms 20 



" " — Season of their appearance and disappearance 22 



" " — Their natural history and transformations 22 



" " — Their enemies 26 



" " — Their injuries to fruit trees 29 



