HEMIPTERA 1097 



Injury Sucks sap from tender shoots and leaves. 



Distribution Europe. 



Reference Van der Goot, P. Hollandischen Blattlause, p. 136. 1915. 



nigrofasciatum Perg., Lecanium (Terrapin scale) Fam. Coccidae 



Hosts Prunus, Acer, Malus, Crataegus, Tilia, Platanus, and other species. 

 Injury Sucks sap from bark and secretes much sticky liquid, which covers surface of 

 branches, foliage, and fruit and on which a sooty fungus grows, thus rendering fruit 

 unsalable. 

 1 Distribution North America. 



References Felt, E.P. New York State Mus. Memoir 8 1 : 201. 1905. 



Slingerland, M. V., and Crosby, C. R. Manual of fruit insects, p. 293. 

 1914. 



obliqua Say, Erythroneura Fam. Cicadellidae 



(See page 1061.) 



oleae Col vee, Parlatoria Fam. Coccidae 



Hosts Many woody plants, including Crataegus germanica. 



Injury May incrust the bark, and sometimes the leaves and the fruit, of trees of the 



genera Citrus, Pyrus, and Olea especially. 

 Distribution Mediterranean region. 

 References Lindinger, L. Die Schildlause, p. 213. 1912. 



Sorauer, P. Handbuch der Pflanzenkrankheiten 3 : 694. 1913. 



olivaceus Fabr., Deraeocoris Fam. Miridae 



Synonym Capsus medius Kirschb. 



Hosts Malus, Crataegus, Primus, Corylus. 



Injury Sucks juice from foliage. 



Distribution Europe. 



References Kaltenbach, J. H. Pflanzenfeinde, p. 213. 1872. 



Reuter, O. M. Hemiptera gymnocerata Europae 5 : 30. 1896. 



ornatus VanD., Orthotylus Fam. Miridae 



(See page 1055.) 



ostreiformis Curt., Aspidiotus (European fruit-tree scale) Fam. Coccidae 



Synonym Aspidiotus oxyacanthae Sign. 



Hosts Malus, Prunus, Pyrus, Crataegus, and many other woody plants. 

 Injury May completely incrust the bark and kill the tree. 

 Distribution Europe, Asia Minor, North America. 

 References Theobald, F. V. Insect pests of fruits, p. 386. 1909. 

 Lindinger, L. Die Schildlause, p. 213. 1912. 



ostryae Knight, Lygus ' Fam. Miridae 



(See page 1055.) 



oxyacanthae Schr., Myzus . Fam. Aphididae 



Synonym Aphis oxyacanthae Koch. 



Hosts Crataegus oxyacantha, Pyrus, Malus, Prunus. 



Injury Sucks juice from leaves, causing yellow or red swellings on them and making 



them curl. 



Distribution Europe. 

 References Koch, C. L. Pflanzenlause, p. 55. 1857. 



Ross, H. Die Pflanzengallen Mittel- und Nordeuropas, p. 132. 1911. 



padi Linn., Rhopalosiphum Fam. Aphididae 



Synonyms Aphis avenae Fabr., Aphis padi Kalt. 

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



