1096 HEMIPTERA 



lanigera Hausm., Eriosoma (Woolly aphis) Fam. Aphididae 



Synonyms Eriosoma crataegi Oest., Schizoneura americana Riley. 

 Hosts Crataegus, Malus, Ulmus americana. 



Injury Sucks sap from tender shoots, branches, and roots, often stunting growth. 

 Distribution North America, Europe, Africa, Australia, South America. 

 References Theobald, F. V. Insect pests of fruits, p. 141. 1909. 

 Baker, A. C. U. S. Agr. Dept. Kept. 101. 1915. 

 Becker, G. G. Journ. econ. ent. 1 1 : 245. 1918. 

 (Fig. 109, page 1064.) 



lineatus Linn., Philaenus Fam. Cicadellidae 



(See page 1061.) 



mali LeB., Empoasca (Apple leaf hopper) Fam. Cicadellidae 



(See page 1061.) 



mali Schmid., Psylla : Fam. Payllideu 



Synonym Psylla crataegicola Forst. 



Hosts Crataegus oxyacantha, Malus, Pyrus, Sorbus, Quercus, Ulmus, Corylus. 



Injury Nymphs suck juice from foliage and blossoms, and prevent setting of fruit. 



Distribution Europe, Asia, Nova Scotia. 



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



Theobald, F. V. Insect pests of fruits, p. 153. 1909. 



Brittain, W. H. Journ. econ. ent. 15:96. 1922. 



malinus Reuter, Heterocordylus (Dark apple redbug) Fam. Miridae 



Hosts Crataegus, Malus. 



Injury Nymphs and adults puncture leaves and fruit to suck juice. Cause dimples 



in fruit, which deform it. 



Distribution Northeastern United States, Canada. 

 References SUngerland, M. V., and Crosby, C. R. Manual of fruit insects, p. 28. 



1914. 

 Cushman, R. A. Ent. Soc. Washington. Proc. 18:196. 1916. 



marutae Oest., Aphis Fam. Aphididae 



Hosts Crataegus, Anthemis cotula. 



Distribution North America. 



References Oestlund, O. W. Aphididae of Minnesota, p. 40. 1886. 



Hunter, 1901, p. 101. (Cited by Patch, E. M. Maine Agr. Exp. Sta. Bui. 

 270:49. 1918.) 



melanoneura Forst., Psylla Fam. Psyllidae 



Synonym Psylla crataegi Forst. 



Hosts Crataegus oxyacantha, Quercus, and other species. 



Distribution Europe, Asia. 



References Aulmann, G. Psyllidarum catalogus, p. 20. 1913. 



Harrison, J. W. H. Naturalist (London), no. 707, p. 400. 1915. 



mendax Reuter, Lygidea (Bright apple redbug) Fam. Miridae 



Hosts Malus, Crataegus. 



Injury Nymphs and adults puncture leaves and fruit to suck juice, and cause dimples 



in fruit. 



Distribution Northeastern United States, Canada. 

 References SUngerland, M. V., and Crosby, C. R. Manual of fruit insects, p. 28. 



1914. 

 Cushman, R. A. Ent. Soc. Washington. Proc. 18:196. 1916. 



mespili v.d.G., Ovatus Fam. Aphididae 



Hosts Crataegus oxyacantha, Mespilus germanica. 



