Kinsey: The Genus Neuroterus 
57 
Ins. Aff. Pk. and Wdl. Trees, II, p. 627. Jarvis, 1907, 37th Rpt. 
Ent. Soc. Ont., p. 72; 1908, 38th Rpt. Ent. Soc. Ont., pi. B. fig. 6. 
Beutenmuller, 1910, Bull. Amer. Mus. Nat. Hist., XXVIII, p. 124, 
pi. XIII, fig. 7. Beutenmuller in Smith, 1910, Ins. N.J., p. 598. 
Dalla Torre and Kieffer, 1910, Das Tierreich, XXIV, pp. 336, 820, 
828. Felt, 1913, N.Y. State Mus. Bull., 165, p. 121. Thompson, 
1915, pp. 18, 41, pi. 4, fig. 306. Viereck, 1916, Hymen. Conn., p. 
390. Felt, 1916, N.Y. State Mus. Bull., 186, p, 93; 1918, N.Y. 
State Mus. Bull., 200, p. 107, figs. 85 (7), 100. Lutz, 1918, Field- 
book Ins., p. 462, pi. XCVII, fig. 7. Britton, 1920, Conn. Geol. and 
Nat. Hist. Surv. Bull., 31, p. 320. Felt, 1921, N.Y. State Mus. 
Bull., 231, p. 73. Cresson, 1923, Trans. Amer. Ent. Soc., XLVIII, 
p. 203. 
FEMALE. — Cheeks rather narrow, eyes of moderate size; antenna 
with the third segment almost twice as long as the fourth; mesonotum 
and mesopleurae largely smooth; abdomen decidedly small, hardly larger 
than the thorax, triangulate, distinctly produced dorsally; legs yellowish 
brown, brownish yellow at the joints and on the tarsi; areolet moder- 
ately small; cubitus rather indistinct but continuous; the first abscissa 
bent; length 0.7-1.2 mm. 
GALL. — Small, separable, saucer-shaped. Each cell monothalamous. 
Up to 1.0 mm. in diameter, strictly circular, flattened, centrally de- 
pressed, with a low rim, a minute point in the center of the depression; 
light green, becoming brown; rather densely covered with short hairs; 
attached by rather a broad point, but quite easily separable, hardly at 
all imbedded in the blade, but indicated on the upper surface of the leaf 
by a slight papilla surrounded by a considerable circle of discoloration. 
Internally entirely hollow, without a distinct larval cell. On the under 
surfaces of white oaks, commonly on Quercus bicolor (the type variety), 
recorded from Q. Michauxii (acc. Felt), Q. macrocarpa (acc. Jarvis), 
and Q. stellata (Patterson coll.). Figs. 40, 41. 
RANGE. — Ontario (Jarvis). Massachusetts: Boston (in Clarke 
coll.); Forest Hills (Kinsey coll). Connecticut: Waterbury (Bassett); 
New Haven (Viereck). New York: New York City, Staten Island 
(Beutenmuller) ; Barrytown (Bassett in coll. Mus. Comp. Zool.) ; Hud- 
son Falls, Mt. Kisco, Sea Cliff (Felt). New Jersey: Ft. Lee (Beuten- 
muller); Broadway (Kinsey coll.). Pennsylvania, Illinois (Beuten- 
muller). Mississippi: Pickens (Felt). Texas: Austin (Patterson coll.) . 
Probably thruout the eastern half of the United States. 
TYPES. — 25 females, many galls. Holotype female, paratype 
females, and galls at the Philadelphia Academy; paratype galls 
at The American Museum of Natural History and the Museum of Com- 
parative Zoology. From Waterbury, Connecticut; Q. bicolor; Bassett 
collector. 
The gall of this species is very common, and a familiar 
object to all who have hunted galls in the northeastern part 
of the United States, but the insect is so difficult to rear 
that, as far as I know, no one has yet accomplished it. Bas- 
