TABLE OF CONTENTS. • 



Page. 



Letter of transmittal ii 



Financial report ill 



Table of contents VI 



Introduction 1 



Insects injurious in 1896 3 



The Chinch-bug in 1896 3 



The Frit- fly (Oscinis soror Macq. ) 6 



The Wheat-stem Maggot [Meromyza amerkana Fitch) 10 



The Hessian-fly [Cecidomyia destructor Say) 11 



The Army-worm {Leucania unipuncta Harv.) 14 



The Erratic Army-worm { Noctua fennica Tausch) 20 



The White-grubs { Lachnosterna tristis Fab. and L. ni- 



gosa Melsh. ) 22 



The Common Hairy Rose-beetle [Euyhoria inda Linn. ) 26 



The Potato-beetle (Doryphora decemlineata Say) 27 



The Domestic Cricket {Grillus domesticus Linn. ) 28 



The Box-elder Leaf-roller {Cacoecia semiferana Walk.) in 



1896 31 



The Grape-vine Leaf-hoppers ( Typhlocyba spec. ) 33 



Report of Mr. R. H. Pettit 34 



The Celery Tree-hopper [Cicadula 4-lineata Forbes) 37 



The Lilac-borer {Sesia syringcf, Harr. ) 38 



The Plum-gouger {Coccotonis j^vunicida Walsh) 38 



The Plum-iiuvculio {ConotracliehLs nemmi2)har Hbst. ) 41 



Parasites of Man and Domesticated Animals 44 



Inti'oduction * 44 



I. External Parasites. {Epizon) 4(i 



A. Face-mites. Black-heads. ( Demodecidw ) 4t) 



Face-mite of Man {Demodex folUculmimi Sim.) 48 



Demodex of the Dog { D. folliculonim var. canis) 48 



Demodex of theCat (D.folliculorum var. r((ti) 48 



Demodex of the Hog {D. phylloiden suis) 48 



Remedies 49 



B. Itch-mites. (Sarcoptidct') 50 



1. Burrowing Mites. (Sarcoptes) 52 



Itch-mite of Man [Sarcoptes scab lei De. G. var. honiinis) 54 



Remedies 56 



Norwegian Itch-mite of Man (SarcoiJtes crustosce Fuevat).. 58 



