505 . A spangle gall on Q. prinus . White, 4 mm. in dia., depressed, in October 
when the nutritive layer was almost used up. 
506. Neuroterue tantulus Weld. 255* Saucer-shaped, o.9-l »6 mm. in dia., in 
number® on under side of leaf of Q. alba dropping in early fall leaving 
a scar on the gall and a brown spot on the leaf. 
507. Xystoteras nigrum (Fitch). 24l. A depressed sphere 5*5 by 1.8 ram on under 
side of leaf of Q.alba in Va. in Sept.j covered with a white bloom ( as 
determined Weld)• 
508. Zopheroteras hubbardi (Ashm.). 5^5. The figure is of a gall from which an 
adult determined as this species was reared. Gall white, 2.5 by 1.85 
by 1.7 mm. high on under side of leaf of Q. velutina in October. The 
adult emerged the second spring Apr.15 (DC). 
509. Amphibolipe nubilipennis (Harris). 290. Like a green grape, 14-22 mm. in 
dia., succulent, almost translucent. On under side of leaf of 
i licifolia and other red oaks in June. Adults emerged June 22-25 at 
Medina,N.Y. Four-fifths of them were parasitized. 
510. Neuroterue verruoarum (O.S.). 257• Compact woolly mass 2 mm. in dia. by 
1 mm. high in numbers on under side of leaf of Q.s tellata in the fall. 
511. Riylloteras rublnum (Gill.). 259. A depressed w hite sphere up to 5.2 mm. 
in dia. by 5*1 mm. high on under side of leaf of Q. alba just as the 
leaves are turning in the fall. 
512. Dryocosmus albidus Weld. 592. Fig.242. A depressed white sphere, fleshy, 
bare, up to 5.4 mm. in dia. on under side of leaf of Q.v elutin a in the 
late fall, similar in external appearance to the above but internal 
structure is different and on a different host. 
515. Similar to Phylloteras sigma Weld (Fig.24l) but straight and without a scar 
in center, green, on a vein on Q. muehlenbergii in June at Manhattan,Kan 
514. Neuroterus umbilicatus Bass. 255. Fig.217. Cup-shaped with inrolled edge, 
5-4 mm. in dia., covered with short whitish hairs, on under side of 
leaf of-Q. alba in the fall. 
515. Neuroterus olarkeae Beut. 209. Light-colored, ellipsoid, sessile, covered 
with short wool, 2-5 mm. long, at edge of young leaf of Q. alba in the 
early spring. 
516. Liodora comata Weld. 268. Similar to Neuroteru s clarkea o Beut. above but 
pointed at end, 5.0 by 1.2 mm. and covered with crinkly white hairs, 
tan, thin-walled, at edge of leaf of Q.alba in early spring. 
517. Callirhytis bipapillata Weld. 409. Fig. 267 . Parenchyma thickenings in 
numbers on leaf of Q. ilicifolia projecting on both sides of the leaf 
in June. 
518. Neuroterus fugiens Weld. 219. Single or scattered parenchyma thickenings 
more prominent below, sparingly hairy, on Q. bicolo r in May. 
519. Bassettia pallida Bass. 581. Described from a single specimen from 
Savannah, Ga. April 15 without gall or host. Agreeing with the type 
are specimens from cells just under the bark of small twigs of 
vi rgin!ana in Florida, the adults emerging in Feb. and Mar. (Homestead) 
121 
