HEMIPTEEA 1099 



Hosts Malus, Pyrus, Crataegus, Prunus, many grasses. 

 Injury Sucks juice from opening buds of trees in spring. 

 Distribution North America. 



References Quaintance, A. L. U. S. Ent. Bur. Giro. 81. 1907. 

 Baker, A. C. Journ. agr. res. 18:311. 1919. 



pumilus Uhl., Ceratocapsus Fam. Miridae 



Synonym Melinna pumila Uhl. 



Hosts Crataegus, Salix. 



Injury Adult sucks sap from foliage. 



Distribution Eastern United States. 



Reference Uhler, P. R. Ent. Amer. 3:69. 1887. 



pyri Fitch, Prociphilus (Pear root aphis) Fam. Aphididae 



Hosts Pyrus, Crataegus, Malus. 



Injury Sucks sap from roots. 



Distribution Eastern North America. 



References Quaintance, A. L., and Baker, A. C. U. S. Agr. Dept. Farmers' bul. 



804:19. 1917. 



Wilson, H. F., and Vickery, R. A. Wisconsin Acad. Sci., Arts, and 

 Letters. Trans. 19:140. 1918. 



querci Fitch, Empoa Fam. Cicadellidae 



(See page 1052.) 



rosae Linn., Empoa (Rose leaf hopper) Fam. Cicadellidae 



Hosts Rosa, Malus, Pyrus, Prunus, Crataegus, Cydonia, and other species. 



Injury Nymphs and adults suck juice from lower leaves of trees, causing yellowing of 



foliage and in some cases defoliation. 

 Distribution Europe, North America. 

 Reference Ackerman, A. J. U. S. Agr. Dept. Bul. 805:20. 1919. 



rumicis Linn., Aphis Fam. Aphididae 



Hosts Many herbs and woody plants, including Crataegus oxyacantha and pear. 



Injury Sucks juice from foliage in spring and fall. 



Distribution Europe, North America. 



References Borner. Nat. Ver. Bremen. Abhandl. 23 : 152. 1914. 



Van der Goot, P. Hollandischen Blattlause, p. 220. 1915. 



rusci Linn., Ceroplastes Fam. Coccidae 



Hosts Many plants, including Crataegus. 



Injury Sucks juice from bark, leaves, and fruit. 



Distribution Mediterranean region. 



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



Sorauer, P. Handbuch der Pflanzenkrankheiten 3 : 695. 1913. 



saliceti Forst., Psylla Fam. Psyllidae 



Hosts Salix, Crataegus oxyacantha. 



Injury Sucks juice from foliage. 



Distribution Europe, Asia, Japan. 



Reference Aulmann, G. Psyllidarum catalogus, p. 26. 1913. 



seminudus Say, Eutettix Fam. Cicadellidae 



(See page 1062.) 



sorbi Kalt., Aphis (Rosy apple aphis) Fam. Aphididae 



Synonym Aphis malifoliae Fitch. 



Hosts Malus, Pyrus, Crataegus, Sorbus, Plantago. 



Injury Cur.s leaves and deforms fruit. 



