HEMIPTERA 1095 
Cndoniae WNKOn, COMER coocs koooonse bono bSosboedunebodbddboogedood Fam. Tingitidae 
Synonyms — Corythucha arcuata Comst., C. crataegi O. & D. 
Hosts — Crataegus, Cydonia. 
Injury — Nymphs and adults suck juice from leaves, causing them to turn bron 
Distribution — North America. 
References — Fitch, A. Country gent. 17:25. 1861. 
Comstock, J. H. U.S. Ent. Rept. 1879:221. 1879. 
Gibson, E. H. Amer. Ent. Soc. Trans. 44:87. 1918. 
GLannes simian Cala VEN aCOCCUS ser aniicl vats ane cece nee oii Nees are scree: Fam. Coccidae. 
Synonym — Phenacoccus betheli Ckll. 
Hosts — Crataegus, Amelanchier. 
Distribution — Canada, United States. 
Reference — Ferris, G. Ff. Contribution to knowledge of Coccidae of southwestern 
United States, p. 68. 1919. 
chslaganins Sasy, LCOS. ctor Be ROR erm ante Honda bce e na ace Some aun ole Fam. Miridae 
(See page 1054.) a 
chirnciorunm SOuntt.. IZM SCO NA ook mop aedbouboaeeaodsucdoeoddbeuJosdees Fam. Tingitidae 
Hosts — Crataegus oxyacantha, Pyrus communis,. Prunus padus, P. spinosa. 
Distribution — Europe, Egypt. 
References — Kaltenbach, J. H. Pflanzenfeinde, p. 213. 1872. 
Saunders, E. Hemiptera of British Islands, p. 185. 1892. 
CACTI CMEC KemmPAUDLUSHetr ny Ts SPM ay No IeC Emin s Mend EER HE a EL Ia Aen Fam. Aphididae 
Host — Crataegus oxyacantha. 
Distribution — Europe. 
Reference — Buckton, G. B. Monograph of British aphides, 2:39. 1879. 
fitcht VanD., Idiocerus (Black apple leaf hopper).....................4.. Fam. Cicadellidae 
Synonym — Idiocerus maculipennis Fitch. 
Hosts — Crataegus, Malus, Pyrus. 
Injury — Adults and young suck juice from foliage. Not commonly injurious. 
Distribution — North America. : 
References — Van Duzee, E. P. Catalog of Hemiptera, p. 580. 1916. 
Brittain, W. H., and Saunders, L. G. Can. ent. 49:149. 1917. 
FLOMICC PALO Coding ODRIGenma. ./e).. eh Wa oo dos calles bee Wee we oe Fam. Membracidae 
(See page 1063.) 
noe ibcUenionaspis) (ScuriyaSscale)eisc «<2. einen le) Cian pense Fam. Coccidae 
Hosts — About 25 tree species, including Crataegus, Malus, Pyrus, Cydonia, Sorbus. 
Injury — Occasionally incrusts bark of trees and greatly weakens or kills them. 
Distribution — North America. 
References — Slingerland, M. V., and Crosby, C. R. Manual of fruit insects, p. 176. 
1914. 
Essig, E. O. Tnjurious and beneficial insects of California, p. 158. 1915. 
COUCH C AVIA ALS DUCTOLUSS serrate Osos k ta cua: sical teh Nt lem lial) Ud VM on LILY ca oe Fam. Coccidae 
Synonym — Aspidiotus nerii Bouché. 
Hosts — Many woody and herbaceous plants, including Crataegus azarolus. 
Distribution — Europe, Asia, North Africa (on Crataegus in Algeria), North America. 
References — Lindinger, L. Die Schildliuse, p. 213. 1912. 
Sorauer, P. Handbuch der Pflanzenkrankheiten 3:689. 1913. 
Lace yas 1D) JOPOCHU So c0in bo 8 058 bob Ho bsb old oldie 66 bean Ub MO Nea oma Fam. Cicadellidae 
(See page 1061.) 
