NOTES ON ILLUSTRATIONS OF GALLS 
All ths deacrihed (and many undescribed) species of the area are 
included in the list (not all are figured), arranged by part of 
anrbio"gy!° d ’ tOSSther Wlth nOt0S ° n h ° 8ta > records 
The galls were originally photographed either natural size or I 5 . 
As here reduced those marked X 1 are now about two-thirds and those 
a D are about three times natural size* 
. f! 6 ' °* ci } n “ led specie is: the magnification; the number in the 
Synoptic List; the name of the oak; a list of the other oaks on which 
often P ::\ e Y CCU ^ 1,18 h0St fr ° m Whi0h the 3 P 90isa was described was 
often stated in the original description and sometimes the date of the 
emergence of the types. Here for the benefit of the amateur it is 
stated whether the emergence is to be expected the first spring or 
not until the second and whether the emergence is then distributed 
over several seasons. Pupae usually transform in the fall before the 
emergence takes place and adults can often be cut out of the galls in 
the fall. Adults were alive when cut out on a date mentioned. Date of 
cutting out dead adults is of little significance. These notes may 
guide one as to the time of year to collect galls, otherwise one may 
rear only guesta and parasites. 
DC indicates the general vicinity of Washington, D.C. 
Chi indicates the Chicago area where much of the writer's rearing 
was done. ^ 
"Root" galls 
51, Sphaeroteras caepuliforme (Beut.). X 1. 556. On Q.rubra. Also on Q. velutina , 
maril^ndioa,ilicifolia,falcate,cinerea,oatesbaei,myrtifolia.texana. 
launfoli a. Galls are full-grown by Aug.i, contain pupae'by sSpt.i 
and adults by Oct.J (Chi). Adults emerged Nov.2J-Dec.2 (all females). 
Alternating generation unknown. 
52. Neuroterus contortus (Held) agamic. X 1. 211a. On Q. breviloba . Also on Q. 
stellat e. Galls contained pupae on Oct.50 and adults were cut out Dec. 
12 (Austin,Tex,). The similar gall of the sexual generation is said to 
develop quickly in the spring, adults emerging Apr.?. 
55. Callirhytis elliptica Weld. X 5. 425. On rootlets of Q. alba . Contained adults 
Oct .51 (DC). Adults were seen ovipositing in the buds of white oak in 
different years on Mar.26,28, Apr.5,9,18,19,20. Some such buds were 
marked but what gall (if any) resulted was never determined. This is 
perhaps a synonym of Callirhytis ellipsoid a Weld. 
54. Trisoleniella enigma (Weld). X 1. JQ6, On Q. catesbae i. Also on Q. myrtifolia . 
rubra,nigra,texana• Fig.55 is of individual galls from a disintegrated 
old specimen. Galls may take two years to develop. Adults can be cut 
out Nov.l (Fla.)j Oct.22 (CHi). Normal emergence date unknown. 
56. Disholcaspis terrestris Weld. X 1. 551. On Q. stellat a. Also on Q.marzaretta. 
Adults wers alive in out-of-door breeding cage on Dec.18, the 
thermometer having registered -l4”F on Dec.10 (Ohi). 
57. Callirhytis ellipsoida Weld. X 1. 422. On a. bicolor . Galls probably take 
two years to develop. larvae transform the second fall and adults 
emerge the following spring hetween Apr.15 and May 7 and oviposit in 
swelling buds on the same tree, all females. 
97 
