Callirhytis blastophaga (Ashm.). 410. Q. cineroa . A filament gall 
pointed at end like Fig*288# Reared in May* 
Callirhytis florensis Weld* 429* Q« mariland!oa . Fig.288. An enlarged 
filament. Adults of both sexes emerged May 18.25 (DC). Next 
fall nearly every acorn on this tree had a gall of Callirhyt is 
b alanaspi a Weld (whose maker emerged the second spring)• 
Callirhytis parva Weld. 457* Q. imbricaria. Galls globular, greenish- 
white, usually two-celled, covered with crinkly hairs. The galls 
began to drop May 16; adults out June 11 (DC). Some adults came 
out and had died by June 1 and others were cut out June 4 (W.Va.). 
Callirhytis turnerii (Ashm.). 484. Q. nigra . A woolly white gall on 
staminate flowers as in Fig.58. Adults Apr.28 (Jacksonville,Fla.). 
Never reared. Q. chapman !. A swollen staminate axis. 
Acorn galls 
59. Amphibolips prunus Cresson. X 1. 291. On Q. velutina . Also on Q. coe'ulaaa, 
r ubra ,p alustri8 , imbrioaria , ilicifolia , falcat a, nigra . Transformation 
takes place in the fall; emergence in the spring Feb. 17-May 14. Mo. 
and is distributed over more than one season. Galls contain the 
highest per cent of tannin (40$) of any that have been analysed but 
fluctuates from year to year. 
60. Never reared- XI. On Q. texana . 
61. Amphibolips gainesi Bass. X 1. 285. Cki Q. mariland!ca . Also on Q. falcata . 
One emerged May 4, another May 25 from galls collected the fall before; 
others the second spring. Tannic acid content is about half of that in 
the Aleppo gall and is an iron bluing variety suitable for the making 
of a writing ink. 
62. Callirhytis middletoni Weld. X 5. 459. On Q. phello e. Galls drop in early 
May (DC) and an outer layer decays leaving a hard shell as irt photo. 
Adults emerged the next spring Apr.9-16 and the second spring Apr.17* 
65. Never reared. X 1. On Q. prinus . Also on Q. prinoides , michauxii , chapman i, 
muehlenberg ii, alba . brevilob a. durandii . A gall on Q. stellate ., ready to 
drop Sept.15 (Baltimore,Md.), measured 6.1 by 5.2 mm. with a girdle of 
wool at base and a slight nipple at apex. For rearing a bit of cloth 
should be tied about the acorn so the gall will not be lost when it 
matures and drops. 
64. Callirhytis balanacea Weld. X 5. 405. On Q. paluatrls . Also on Q. velutina , 
phellos• Outer layer turns black, wrinkles, dries down on the hard 
inner shell (photo), drops Oct.12 (DC); adults emerged the second spring 
Mar.26_Apr.2 and the third spring in April. 
65. Callirhytis operator (O.S.) agamic. X 1. 455b. On Q.rubra. Also on 
velutlna ,c occine a, imbricari a, ilicifolia . The original material of this 
species was collected at Waterbury,Conn. Aug.25,1871 on Q»ilicifolia 
during Riley’s visit to Bassett. Bassett kept his galls a year and 
rearing nothing threw them away. Riley kept his longer and the second 
spring reared the maker "just as the oak buds were bursting." His label 
bears the date Apr.5,1875* This established an alternation of 
generations in the cynipidae. 
66. Female of Callirhytia operator (O.S.) sex.gen. X 5. ovipoaitlng in the one- 
year old acorn of Q. velutina on June 26 (Chi) to produce the pip gall 
of Fig.65. 
100 
