382 
The Ohio Naturalist. 
[Vol. XV, No. 2, 
Fig. 24. Quercus imbricaria affected by the gall-wasp 
Amphibolips nubilipennis Harris. 
Cynips nubilipennis Harris, Rep. Ins. Mass. Inj. Veg. 1841:399. 
Callaspidea nubilipennis Fitch. 
Cynips quercus sculptus Bassett. 
C. quercus sculpta Walsh. 
Amphibolips sculpta Mayr. 
Beutenmuller, Bull. Am. Mus. XXVI. 
Leaf-gall, globular, succulent, translucent, “about 12-20 mm. 
in diameter and has a very striking resemblance to a large white 
grape,” (Beutm.) Not common. 
Fig. 25. Quercus rubra affected by the gall-wasp Amphibolips 
confluens—form spongifica O. S. 
Cynips confluens Osten Sacken, Proc. Ent. Soc. Phil. 1:56. 
C. quercus coccinea O. S. 
Amphibolips cocciniae Ashmead. 
C. Q. spongifica O. S. (and Riley later). 
Amphibolips spongifica Reinhard. 
Amphibolips confluentus Beutenmuller, Bull. Am. Mus. XXVI. 
Leaf-gall, globular, suppressing part or all of leaf, at first 
green, soon becoming light brown, with shiny, papery wall, con¬ 
taining a spongy mass of radiating fibres covered with down, 
which hold in place the oblong central larval chamber. 3-5 cm. 
in diameter. Common at Huron. This insect shows an alter¬ 
nation of generations, hence the long list of synonyms. 
Fig. 20. Quercus macrocarpa affected by the gall-wasp 
Holcaspis mamma Walsh. 
Cynips q. mamma Walsh, Am. Ent. 1:102. 
Holcaspis duricoria Mayr. 
Cynips duricaria Packard. 
Holcaspis duricaria Beutenm. 
Diplolepis q. macrocarpa Karsch. 
Cynips macrocarpae Dalla Torre. 
Andricus macrocarpae Dalla Torre and Kieffer. 
Beutenmuller, Bull. Am. Mus. XXVI:31. 
Twig gall, acorn-like, globular to elongate, with prominent 
conical projections at end. Single larval chamber in center of a 
brown, woody mass. Diameters variable, 5-12 mm. Common at 
Huron late in July. 
Fig. 27. Quercus imbricaria affected by the gall-wasp 
Holcaspis globulus Fitch. 
Callaspidea globulus Fitch, 5th Rep. Nox. Ins. N. Y. 1858:811. 
Cynips globulus O. S. 
Beutenmuller, Bull. Am. Mus. XXVI. 
Twig gall, spherical, 5-15 mm. diameter, usually in clusters. 
Yellow and pink-flushed, tough in texture when young, brown and 
corky when old. Common in Huron. July. 
