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OAK GALLS AND GALL INSECTS
Fig. 4 A. Ovipostor of a Gall-insect Dryophania (x 30).
B. Egg of a Gall-insect.
a. Apical
b Basal attachment of support
c. Triangular plate
d. Anterior plate
e. Posterior plate,
f. Spiculae
g. Anal papillae
h. Sheath
k. Egg stalk
m. Egg body.