CONTENTS. 



PAGE. 



INTRODUCTOEY - 9 



INSECT ATTACKS AND MISCELLANEOUS OBSERVATIONS : 



The Insects of the Hemlock --19 



The Chalcid Parasites of Cecidomyia betulfe Winnertz - - - 27 



Isosoma hordei (Harris) — The Joint-worm Fly 27 



Thalessa lunator (Fabr.) — The Lunated Long-sting - - - 35 

 Amphibolips prunus (Walsh) — The Oak-phim gall Cynips - - 42 

 Aulacomerus lutescens n. sp. — The Poplar Saw-Fly - - - 44 

 Currant Bushes Girdled by an Unknown Insect - - - - 47 

 Orgyia leucostigma (Sm.-Ahb.) — The White-marked Tussock - 48 

 Lagoa opercularis C*Sm.-^f^b J — The Rabbit Moth - - - - 51 

 Nephelodes violans Guerie'e — The Bronze-colored cut- worm - 54 

 Homoptera lunata (Drury), as a Rose Pest - - . - - - 57 



A Hemlock Leaf-miner 59 



Cecidomyia balsamicola n. sp., and its Gall 60 



Lasioptera vitis 0. S., and its Galls 63 



Chloropisca proliflca 0. S. n. sp., and its Winter Gatherings - - 67 

 Phytomyza lateralis Fallen — The Marguerite Fly - - - - 73 

 Megilla maculata De Geer — The Spotted Lady-bird - - - 80 

 Chauliognathus marginatus (Fabr.) — The Margined Soldier- 

 Beetle 84 



Sitodrepa panicea (Linn.), as a Leather-Beetle 88 



Xylotrechus colonus (Fabr.), occurring in a Dwelling - - - 93 

 Haltica bimarginata fSflf/J — The Alder Flea-Beetle - - - - 96 

 Crepidodera ruflpes (Linn.) — The Red-footed Flea-Beetle - - 101 

 Scolytus rugulosus (Ratz.) — The Wrinkled Scolytus . . . i03 

 Corythuca ciliata (Say) — The Ciliated Tingis - - . - - 107 

 Melanolestes picipes (lf.-6\) — The Black Corsair - - - -109 

 Mytilaspis pomorum C^OMc/ieJ —The Apple-tree Bark-louse - 114 

 Ptyelus lineatus (Linn.) — The Lined Spittle-hopper - - - 120 

 Ephemera natata Walker, and other Ephemeridae - - - - 121 



Hairsnakes as Parasitic on Insects - - 125 



Cermatia forceps (Baf.), as a Household Pest _ - . . i28 



