GALLS ON QUERCUS - OAK 
Quercus alba - white oak 
"Root" galla 
Xanthoteras radicola (Ashm.) aex.geru 247. Fig.51. Cluster of fleshy white 
gall# at base of sprouts which bear old oak fig galla. In early spring. 
Dlaholcaapia globoaa Weld. 541. Fig.50. Cluster of 5-40 reddish bullet galla" 
8-12 mm. in dia.,at base of sprouts, usually hidden by debris. 
Loxaulus illinoisensis (Wold). 572. Pig.45. Cells in greatly thickened bark 
at base of saplings underground, in the fall. 
Holocynips badia (Bass.). 590. Figs.41,52. Hemispherical, rugose, 12-15 mm. 
in dia., usually single, at base of sprouts in the fall. 
Holocynips maxima (Weld). 591. Fig.44. Rounded, many-celled mass, up to 5 q 
by 95 mm. growing out of aide of big roots in the fall. 
Callirhytis elliptioa Weld. 425. Fig.55« Single or in cluster of three or 
four on rootlets just under surface of ground in fall. 
Callirhytis futills (O.S.) agamic. 454. Fig.45. Cells in greatly thickened 
bark at base of the tree in fall. 
Callirhytis perrugoea Weld. 465. Taken ovipositing in terminal buds of 
sprouts Apr.15-Slay 5 • Probably from a root gall like Fig.57. 
Flower galls 
Callirhytis exigua (Bass.). 426. Fig.54. Small, dark tan, oval cells 
scattered in among normal stamens in a shortened axis. 
Acorn galla 
Cell in side of acorn cup,dropping in Sept, and has a circle of white hairs 
at base. Fig. 65 . Never reared. 
Group of 2-18 separate cells inside mature acorn beside the cotyledons in 
Oct. Adults emerge second spring- a Callirhytis. Never described. 
Undersized acorn (cup 7 mm. in dia.) containing a single larval cell which 
occupies the whole interior. In fall (L.I.,N.Y.). 
Bud galls 
Acraspis erinacei (Bout.) sex.gen. 250b. Fig.80. Thin-walled blister on the 
inner face of bud scale as buds start to open in the sipring. 
Acraspis gemula (Bass.). 251. Fig.lo8. Oval, black, at apex of new growth, 
2.5 by 1.25 mm., in May. 
Neuroterus veoicula (Bass.). 258 . Fig.82. Almost globular, smooth,bare,brown, 
2-5 mm.,thin walled, in early spring. Some slightly larger and light 
green and projecting beyond bud scales may be different. 
Andricus pisiformis Beut. 522. Figs.85-88. Globular, 5-6 mm., white,mottled, 
outer wall fleshy, inner hard and brittle. 
Andricus mamillaformis (Wold). 516. Fig.89. Greenish-brown, protruding from 
bud scales in fall. Usually in terminal buds on sprouts from stumps. 
Andricus flavohirtua Beut. 506 . Fig.100. Globular, smooth, surrounded by 
bracts which persist and enlarge after gall drops in June (sfrondosa). 
Callirhytis gemmiformis (Beut.). 457. Fig.91. Dormant bud gall on twigs or 
trunk, conical or blunt, greenish or red, cavity large, in fall. 
Liodora clarkei (Bass.)..Many-celled, smooth, bare, half-hidden by bud 
scales, usually terminal. May 51,Boston, Mass. 
Neuroterus minutus (Bass.). 224. Fig.105. Cells in greatly enlarged petioles 
without a leaf blade, puberulent, often pinkish,in early spring. 
Philonix pallipes (Bass.). 265. Black, at apex of new growth, like ge mula in 
Bhape, surrounded by thread-like bodies. May. Included from literature. 
Conioal, 5.8 by 2.5 mm., red with green tip, wall thick, at apex of new 
growth June 24 (D.C.). 
Blunt, thin-walled, white cell hidden indide a weak lateral bud. Apr.15. 
(D.C.). Adult emerged Apr.26 - genus undetermined. 
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