IV. CONTENTS. 



PAGE 



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





 The Brown China Marks Moth. Hydrocampa nymphaeata 12 



The Mangel or Beet Fly. Pegomyia betae, Curtis. ... 13 



2. ANIMALS INJURIOUS TO FRUIT TREES. 



The Pear-leaf Blister Mite. Eriophyes pin (Pagenst.), Nal. 18 



The White Woolly Currant Scale. Pulvinaria vitis var. 



ribesiae, Sign. ... ... ... ... 18 



On the Locomotion and Length of Life of the Young of 



Pulvinaria vitis var. ribesiae, Sign. ... ... 18 



The Dusky-veined Walnut Aphis. Ptychodes juglandis, 



Frisch. ... ... ... ... ... 22 



The Mealy Plum Aphis. Hyalopterus pruni, Fab. ... 23 



The Plum Bark Beetle. Scolytus rugulosus, Ratze. 



(Illustrations). ... ... ... ... 24 



The Gold Tail Moth. Porthesia aiiriflua (Fab.). (Illustra- 

 tions). ... ... ... ... ... 26 



The Dot Moth. Mamestra persicariae, Linn. ... ... 26 



The Wood Leopard Moth. Zeuzera aesculi, Linn. 



(Illustrations). ... ... .'.. ... 28 



The Pale Brindled Beauty Moth. Pliigalia pilosaria, Hb. 30 



The Red Plum Maggot. Opadia funebrana, Tr ... 31 



The Pear-leaf Blister Moth. Ccmiostoma scitella, Zell 31 



Wasps. ... ... ... ... ... 32 



