IV. CONTENTS. 



PAGE 



The Mussel Scale. Mytilaspispomorum,Bouch6. (Illustrated.) 17 



The Colorado Beetle. Doryphora decemlineata, Say. . . . . 19 



The Turnip Flea-Beetle. Phyllotreta nemorum, Linn. . . 19 



Wireworms. . . . . . . . . . . . . 20 



The Apple Blossom Weevil. Anthonomus pomorum, Linn. 



(Illustrated.) 21 



The Cabbage-Gall Weevil. Ceuthorhynchus sulcicollis, Gyll. 23 



The Plum Bark Beetle. Scolytus rugulosus, Ratze. (Illustrated.) 24 



Cabbage Butterflies. Pieris brassicae, Linn., and P. rapae, Linn. 



(Illustrated.) 25 



The Currant Clearwing Moth. Sesia tipuliformis, Linn. (Il- 

 lustrated.) .. .. .. .. .. ..27 



The Gold Tail Moth. Porthesia auriflua (Fabr.). . . . . 29 



The Goat Moth. Cossus ligniperda, Fabr. (Illustrated.) . . 29 



The Magpie Moth. Abraxas grossulariata, Steph, ,, ,. 32 



The Winter Moth. Cheimatobia brumata, Linn. (Illustrated.) 32 



The Buff-tip Moth. Pygaera bucephala, Steph. . . . . 34 



The Cabbage Moth. Mamestra brassicae, Linn. . . . . 35 



The Dot Moth. Mamestra persicariae, Linn. . . . . . . 36 



The Great Yellow Underwing Moth. Triphaena pronuba 



(Linn.). (Illustrated.) 37 



The Silver-Y Moth. Plusia gamma, Linn. . . . . . . 38 



The Codling Moth. Carpocapsa pomonella, Linn. (Illustrated.) 39 



The Lilac Leaf Miner. Gracilaria syringella, Fabr. . . . . 42 



The Pear Midge. Diplosis pyrivora, Riley. (Illustrated.) . . 42 



Crane Flies. Tipula oleracea, Linn., and Pachyrhina maculosa, 



Meigen. (Illustrated.) .. .. .. 49 



Larvae of Hovering Flies. Syrphidae. . . . . . . . . 50 



The Sheep Nasal Fly. Oestrus ovis, Linn. . . . . . . 52 



