ACAEINA ORTHOPTERA ODONATA HEMIPTERA 1091 



Distribution Europe, North America, Australia. 



References Slingerland, M. V., and Crosby, C. R. Manual of fruit insects, p. 227. 



1914. 



Wilson, H. F. Oregon Agr. Exp. Sta. Bien. crop pest and hort. rept. 

 2:123. 1915. 



ielarius Linn., Tetranychus (Red spider) Fam. Tetranychidae 



(See page 1051.) 



Eriophyes sp. (Hawthorn serpentine gall of Jarvis) Fam. Eriophyidae 



Host Crataegus. 



Injury Makes long, irregular, wavy galls on upper surface of leaves. 

 Distribution North America. 



Reference Jarvis, T. D. Ent. Soc. Ont. Rept. 37:60. 1906. 

 (Figs. 102 and 103, pages 1052 and 1053.) 



ORTHOPTERA 



atlanis Riley, Melanoplus Fam. Acridiidae 



(See page 1054.) 



bivitattus Say, Melanoplus Fam. Acridiidae 



(See page 1054.) 



femur-rubrum De Geer, Melanoplus .Fam. Acridiidae 



(See page 1054.) 



niveus De Geer, Oecanthus (Snowy tree cricket) Fam. Gryllidae 



Hosts Malus, Rubus, Salix, Crataegus, Ulmus, Quercus, and other species. 



Injury Female slits bark to deposit eggs. Slits give entrance to cankers and cause 



scars on branches. 



Distribution North America, Cuba. 



Reference Parrott, P. J., and Fulton, B. B. New York (Geneva) Agr. Exp. Sta. 

 Bui. 388. 1914. 



ODONATA 



v iridis v. d. Lind., Lestes Fam. Agrionidae 



Hosts Crataegus oxyacantha and other species. 



Injury Oviposition punctures in twigs cause galls to form. 



Distribution Europe. 



References Pierre, P. F. M. Rev. sci. Bourbonnais 15: 181. 1902. 



Houard, C. Les zoocecides des plantes d'Europe, 1:514. 1908. 



HEMIPTERA 



aceris Sign., Phenacoccus .' Fam. Coccidae 



Hosts Crataegus oxyacantha and many other woody plants. 



Injury Sucks sap from tender bark of young shoots and calloused wounds. Some- 

 times seriously injures grape. 

 Distribution Europe. 

 References Lindinger, L. Die Schildlause, p. 214. 1912. 



Carpenter, G. H. Roy. Dublin Soc. Econ. proc. 2: 142-160. 1914. 



ambiguus Fall., Psallus Fam. Miridae 



Hosts Crataegus, Pyrus, Malus, Alnetis. 

 Distribution Europe. 



References Reuter, O. M. Hemiptera gymnocerata Europae 1 : 105. 1878. 

 Leonardi, G. Gli insetti 4:98. 1901. 



