STATE AGRICULTURAL SOCIETY. 331 



APPLE. LIMBS. 



the apple and so common on the oak that the description of it 

 will be given under the latter. 



Wounding the twigs externally, causing them to break and fall. 



13. New-York weevil, Ithycerus Novcehoracensis, Forster. (Coleoptera 

 Attelabidae.) 



A beetle in May and June, eating the buds and gnawing into 

 the twig at their base, cutting it often to the pith. 



A gray weevil, the largest one in this country, each of its wing 

 covers with four white lines, w^hich are interrupted by black dots, 

 the thorax with three whitish lines. Length 0.35 to 0.60. See 

 Horticulturist, vol. viii, p. 386. 



14. Seventeen-tear locust, Cicada septemdecim, Linn. (Homeoptera. 

 Cicadidae.) 



Appearing in June, in immense numbers, at intervals of seven- 

 teen years; making slits in the small limbs of the trees, in which 

 to deposit its eggs, causing a profuse flow of sap from the wounds, 

 the limb commonly perishing. A very large black fly with red 

 eyes and four large glassy wings, the ribs of which are bright 

 orange yellow. Width across the wings when spread, 2.50 to 

 3.25. See Trans. N. Y. State Agric. Soc. 1854, p. 742. 



This locust will next appear in this State in 1860 along the 

 Hudson river and on Long Island; in 1866 in the west end of 

 the State; and again on Long Island in 1868 and 1872. S. Cal- 

 verly, Esq., of Brooklyn, assures me that some of these locusts 

 r^n be met with on Long Island every year. 



DOG-DAY CICADA, SCC No. 72. 



Puncturing the smooth bark of the limbs and extracting their juices. 



15. Apple bark-louse, u^spidiotus conchiformisy Gmelin. (Ilomoptera. 

 Coccidafi.) 



An oblong flattish brown scale, one-eighth of an inch long, 

 shaped, like an oyster shell, fixed to tlie smooth ])ark and resem- 

 bling a little blister; sometimes crowded together in such num- 

 bers as to wholly cover the bark. T3en<'ath each of these scales 

 from a dozen to a liundred minute wliitc eggs, which hatch the 

 latter part of May, giving out tiny lice, resembling niinute white 



