Quercus velutina 
Black Oak 
"Root" galls 
Eumayria floridana Ashm. 581. Fig.42. Abrupt rounded mass with a botryoidal 
surface, up to 25 ram. in dia., at surface of ground on sprouts. 
Sphaeroteras oaepuliforme (Beut.). 556. Fig-51- Onion-shaped, in cluster 
around stem below ground, cream-colored to brown, 7-9 mm, high. 
Oallirhytis rubida Weld. 475. Fig.40. Abrupt local swellings on stem 
below ground ^with cells in the thick brown bark, in fall. 
Callirhytis pulohra (Bass.). 470. Fig.57- Green when fresh, the size of red 
currants, containing 4-5 cells, dropping in June. 
Oallirhytis operator (O.S) sex.gen. 455a. Fig.58. Woolly, white. 
Acorn galls 
Oallirhytis operator (O.S.) agamic. 455b. Fig. 65. A pip gall beside the 
mature acorn inside the cup. 
Amphibolips prunus OresBon. 291. Fig.59. A plum gall on side of acorn cup 
dropping in fall and becoming wrinkled. 
Oallirhytis balanacea Weld. 405. Fig.64. A pip gall on side of small acorn 
of current season in fall, secreting honeydew, green, bare,dropping. 
Callirhytis balanaspis Weld. 404. Fig.68. Pip gall in fall on immature 
acorns, 6 mm. in dia., larger than normal young acorns. 
Callirhytis balanoides Weld. 405. Fig.72. Pip gall in fall on acorns of 
current season, secreting honeydew. 
Callirhytis fructuosa Weld. 452. Fig.70. Stone gall inside mature acorn. 
Callirhytis corrugis (Bass.). 4l6. Stone gall inside mature acorn not 
distinguished in the field from fr uctuos a above. 
Callirhytis balanosa Weld. 407. Fig.75. Pip gall in spring on immature 
acorns of previous year, smooth, mottled, secreting honeydew. 
Amphibolips tinctoriae Ashm. 295. Fig.l05- Compressed ovate, the opposite 
sides keeled, single, wall thick, dropping in Oct. 
An Amphibolips like cookii Gill. Green,7-10 mm., not spotted, protruding 
from one of the terminal buds in fall. Adults out Jan.l and 14 the 
second spring. w ever described. 
Andricus gallaestriatae Weld. 455. Fig.107. Spindle-shaped with a long- 
stalked base , up to 51 nim. long, in late summer from weak lateral buds, 
dropping in Sept. . 
Callirhytis rugulosa (Beut.). 475. Fig.95- Ovate, 7-10 mm. long, ridged 
with a knot of reflexed hairs at apex, stellate hairs on surface, the 
wall thin, from weak lateral buds, single or in groups, dropping. 
Melon-shaped, pink, fleshy. May 1 in Chicago area. Fig.81. Never reared. 
Andricus ellipsoidalis (Weld). 505- Fig.94. Spindle-shaped, blunt at both 
ends, up to 14 mm. long, smooth, mottled, dropping in April. 
Stem galls 
Woody stem swellings 
Callirhytis punctata (O.S.). 471. Pig.129. Oak Knot Call. Abrupt, woody, 
completely encircling branch. 
Callirhytis soitula (O.S.). 476. Fig.119- An abrupt enlargement of new 
growth hearing normal leaves. 12 by 55 mm., full-grown by June. 
Dryocosmus imbrioariae (Ashm.). 597. Banded Bullet Gall. Globular, 7-10 
mm. in dia., red, single or in groups, dropping in fall. 
Dryocosmus floridenaie (Beut.). 596. Fig.297. A rosette of green bracts 
sessile on trunk or twigs, larval cell in center, usually single. 
80 
