1908 ENTOMOLOGICAL SOCIETY. ' 81 



Affecting Goldenrod. 

 A. — Galls on leaves. 



Circular or somewhat irregularly elliptical, spot-like galls, only pro- 

 jecting very slightly from each side of the leaf. The main part of the spot 

 is light colored, this being enclosed by a dark ring giving it some resem- 

 blance to an eye. Lunate Marginal Gall — Choristoneura flavohmata (Felt)-- 

 Plate A., fig. 6. Solidago Canadensis. 



Small, oblong, or seed-like galls, light green in color, on the lower sur- 

 face of the leaves. Seed Gall. Solidago Canadensis. 



Conical leafy structure i to 1| inches high and \ inch in diameter. 

 Between the thickened parts of the leaflets live from one to many, small, 

 orange coloured larvae. Terminal Gall — Asphondylia monacha (O.S.) — 

 Solidago Canadensis. 



Leaves thickened and folded lengthwise, somewhat like a pod ; green or 

 red in colour. Leaf -fold Gall — Chaitophorous sp. (undescribed) — Solidago 

 Canadensis. 



B, — Galls on the stems. 



Large, elongated, monothalamous gall with a very large larval chamber 

 situated on the stem below the branches. Elliptical Gall — Gnorimoschema, 

 galloesolidaginis (Riley). 



Spindle-shaped galls about 3 cm. in length. Situated high up on the 

 stem on the main axis of the plant among the branches, often causing some of 

 these to abort. It passes the winter in the larval stage. Goldenrod Spindle 

 Gall — Eucosma Scudderiana (Clemens) — Plate J., fig. 2. Solidago Cana- 

 densis. 



Elliptical, hollow gall, 1.25 inches in length, .48 of an inch in diameter, 

 the diameter of the plug .08 of an inch. The galls are found a short dis- 

 tance above the ground. — Gnormischema galleeisterella (Kell). Solidago 

 Canadensis. 



Apical, bunch-like galls produced by the arrest of growth in the stalk, 

 which causes the leaves to accumulate. Bunch Gall — Cecidomyia solidaginis 

 (Loew) — Solidago Canadensis. 



Globular, ball-like enlargement about 1 inch in diameter. Ball Gall — 

 Trypeta solidaginis (Fitch) — Plate J., fig. 3. Solidago Canadensis. 



Consists of small bunch of accumulated aborted leaves about i inch in 

 length. Cylindrical Bunch Gall — Trypeta polita (Loew) — Solidago Cana- 

 densis. 



C. — Galls in floiver stalk. 



Bud-shaped, green galls, which are larger and stouter than the normal 

 buds. Bud Gall — Cecidomyia racemicola (O.S.) — Solidago Canadensis. 



Affecting Gooseberry. 



An irregular or rounded cluster of bud-like galls arising from a spherical 

 receptacle on the stem. Gooseberry Bud Gall. Plate 0., fig. 6. Rihes 

 cynoshati. 



Affecting Grape. 

 A. — Galls on leaves. 



A white erineum on the underside of the leaf. Trichomes simple. Erio- 

 phyes sp. — Plate L., fig. 4. Wild Grape. 



Small, semi-circular or nearly circular capsules along the veins, about 

 2 mm. in diameter and but slightly elevated on either surface of the leaf. On 



6 EN. 



