INDEX TO REPORT OF THE STATE ENTOMOLOGIST I92I 



129 



Tibicen septendecim, 104 



Timber beetles, 89 



Tobacco paper, loi 



Tobacco soap solution, 98 

 i Tomatoes, stalk borer injuring, 72 



Toxomyia brideliae, 112 



Tree crickets and canker, 67 



Tree hopper, Buffalo, 68 



Tremex columba, 89 



Treubia, 113 



Tribolium confusum, 58 

 I Trichogramma minutum, 27 



Tricontarinia luzonensis, 108 



tridentata, Saperda, 63 



trifolii, Colpodia, 104 



tripunctata, Oberea, 85 



Trishormomyia pandani, 113 



tritici, Harmolita, 54 

 Isosoma, 8 



Tritozyga borealis, no 



Trogoderma tarsale, 96 



Tulip, Neoclj^us erythrocephalus in- 

 juring, 88 



tumidosa, Porricondyla, no 



Tussock moth, white-marked, 9, 62 



i2-punctata, Crioceris, 91 



Twig borer, red-shouldered, 90 



uichancoi, Kronodiplosis, 108 

 ulmea, Dasyneura, 102 

 ulmi, Lepidosaphes, 63 



Schizoneura, 63 

 ulmicola, Oberea, 85 

 unicolor, Byturus, 40 

 unipuncta, Heliophila, 8, 68, 109 



vaginicola, Harmolita, 54 

 vaginicolum, Isosoma, 8 

 verbasci, Anthrenus, 96, 109 

 vernoniae, Diceromyia, 108 

 versicolora, Plagiodera, 9, 84 



Vespa crabro, 94 



maculata, 94 

 vicarius, Oeciacus, 106 

 villebrunneae, Schizomyia, 113 

 vitea, Asphondylia, 108 

 vitis, Pulvinaria, 63, 98 



Walnut, black, Agrilus otiosus injur- 

 ing, 90 



Walshomyia insignis, 112 



weldi, Rhopalomyia, 1 12 



Wheat, injurious insects 

 Colpodia trifolii, 104 

 Hessian fly, 51 



Wheat joint worms, 8, 54-58 



Wheat midge, 8, 43-50; record i9i9, 

 45 ; summary of estimated yield 

 and approximate losses, 46; in Erie 

 and Niagara counties, 47; preval- 

 ence in 1920, 49; in rye, 50; sum- 

 mary by counties, 50 



Wheat wireworm, 69 



White grubs, 112 



White pine weevil, 11, 113 



WilloAv beetle, imported, 84 



Willow leaf beetle, 9 



Winnertzia fungicola, 112 



Wireworms, 9, 69 



Xenhormomyia, in 



africana, in 



natalensis, in 

 Xyleborus celsus, 89 

 Xylodiplosis aestivalis, figure, 103 

 Xylotrechus colonus, 87 



Young, D. B., study of European 

 corn borer, 7 



zeae, Achatodes, 74 

 zenobia, Thj-sania, 64 

 Zeuzera pyrina, 63 



