HEMIPTERA 1093 
EOC CELCOMHOLS (mk GOD ILOCED LOL GMs ss = enrol SEP pays lbs 4s opsiereieis eoecn a else eno Fam. Cicadellidae 
(See page 1061.) 
PUMOURS UTNE Wie, ILO a 8 alien eusiole one ns en eats el auto aby eon Toe ene eter Fam. Miridae 
(See page 1054.) 
cornt Bouché, Lecanium (European fruit lecanium)......................... Fam. Coccidae 
Hosts — Crataegus, Malus, Prunus, and other species. 
Injury — May suck so much sap from branches as to kill them, but commoner injury is 
due to growth of sooty fungus over sticky secretion which the insects drop on foliage, 
fruit, and branches. 
Distribution — Europe, North America. 
References — Sorauer, P. Handbuch der Pflanzenkrankheiten 3:695. 1913. 
Slingerland, M. V., and Crosby, Cc. R. Manual of fruit insects, p. 261. 
1914. 
corrugatans Sir., Pemphigus (Woolly thorn aphis).................-...-2- Fam. Aphididae 
Hosts — Crataegus, Amelanchier, Pyrus, Cydonia. 
Injury — Distorts leaves into a rolled curl._ 
Distribution — North America. 
References — Patch, EK. M. Maine Agr. Exp. Sta. Bul. 233. 1914. 
Quaintance, A. L., and Baker, A. C. U.S. Agr. Dept. Farmers’ bul. 
804:19: 1917. - 
BOR GUE VUTINT. EARTH OUT AS Biche e ee acl ee ea ma es a Ae Fam. Coccidae 
Synonyms — EHulecanium pyri Schr., Lecanium capreae Linn. 
Hosts — Malus, Crataegus, Pyrus, and other species. 
Injury — Sucks sap from bark, not commonly injurious. 
Distribution — Europe, North America. 
References — Theobald, F. V. Insect pests of fruits, p. 175. 1909. 
Lindinger, L. Die Schildlause, p. 216. 1912. 
DOREAES Tare, IPD TMG. fa Ee Bele OTs a en Lag a ee Fam. Psyllidae 
Hosts — - Malus, Crataegus, Sorbus, Quercus. 
Distribution — Europe. 
Refere ce — Harrison, J. W. H. Naturalist (London), no. 707, p. 400. 1915. 
LC OTL Al Ker SIVELCTOSUD IVT elke nc eee ee Fam. Aphididae 
Host — Crataegus oxyacantha. 
Distribution — Enlgand. 
References — Walker, F. Ann. mag. nat. hist. 6:46. 1850. 
Theobald, F. V.- Journ. econ. biol. 8:142. 1913. 
LOTLD Ue TREN AGTERS SENS Se ORE ve belts cer a a a te a eR Fam. Aphididae 
Synonyms — Aphis pyri Boyer, A. crataegi Koch, A. ranunculi Kalt. 
Hosts — Crataegus oxyacantha, C. azarolus, Malus, Ranunculus. 
Injury — Curls, discolors, and blisters leaves on terminal shoots. 
Distribution — Europe. 
References — Dobrovliansky, V. V. Biology of aphids of tree and bush fruits (Kiev). 
1913 
Van ae: Goot, P. Hollandischen Blattliuse, p. 174. 1915. 
Theobald, F. Vv. Entomologist 48: 259. 1915. 
crataegi Fitch, Glossonotus (Hawthorn tree hopper).................... Fam. Membracidae 
Hosts — Crataegus, Malus, Cydonia. 
Distribution — North America. 
References — Fitch, A. Third annual report on noxious insects of New York, p. 334. 
1856. 
Funkhouser, W. D. Cornell Univ. Agr. Exp. Sta. Memoir 11:248. 1917. 
