100 
Indiana University Studies 
part), Amer. Ins. Galls, pp. 14, 40. Felt, 1918, N. Y. State Mus. 
Bull., 200, p. 90. Wells, 1921, Bot. Gaz., LXXI, p. 377, pi. XXII 
(13). Kinsey, 1922, Bull. Amer. Mus. Nat. Hist., XLVI, p. 285. 
Nmcrotei^us quercws-irregularis Dalla Torre and Kieffer, 1910, Das Tier- 
reich, XXIV, pp. 339, 813, 834. 
Neuroterus (Dolichostrophus) irregularis Ashmead, 1887, Trans. Amer. . 
Ent. Soc., XIV, p. 129. 
FEMALE. — Face almost black, mouthparts light yellow; antennae 
dark brown, lighter or darker straw yellow basally; legs straw yellow 
or lighter, sometimes a slight tinge of brownish on the centers of the 
femora; wing veins yellowish brown; areolet averaging rather smaller; 
cubital vein faint at the basalis; length 1.2-1. 7 mm. 
MALE. — Thorax yellow, mesonotum in most cases wholly dark 
brown to brownish black, a touch of brown even on the scutellum; thorax 
slender, the scutellum longer than wide; abdomen brown to almost black. 
GALL. — As described for the species; on Quercus stellata and Q. 
alba. 
EANGE. — D.C.: Washington (Osten Sacken). Virginia: Eosslyn. 
Indiana: Bloomington. Tennessee: Paris. Kentucky: Mammoth Cave. 
Probably confined to a more southeastern part of the United States. 
TYPES. — A single male (without abdomen) and galls, at the 
Museum of Comparative Zoology. From near Washington, D.C.; Quer- 
cus stellata; Osten Sacken collector. 
Adults emerged a short time after collecting in 1920, at 
Paris, Tennessee, on May 4, and at Rosslyn, Virginia, on 
May 16. The latter locality is only a few miles from the 
Capitol, and is therefore very nearly the type locality. My 
descriptions are based on this Rosslyn material. I have seen 
the type, but have not had a chance to compare it in detail 
with my own material. It is not impossible that the Indiana, 
Tennessee, and Kentucky records represent another variety, 
but I do not now detect any constant, grouped differences. 
This variety is smaller than, and differs in details of color 
from majalis and variegatus. I have both Q. stellata and 
Q. alba galls and insects from the Tennessee and Kentucky 
localities, but the series are not large enough to allow a 
decision as to whether there are any differences in material 
from the two oaks. 
Neuroterus irregularis variety majalis (Bassett) 
Cynips q. majalis Bassett, 1864, Proc. Ent. Soc. Phila., Ill, p. 683. 
Cynips majalis Osten Sacken, 1865, Proc. Ent. Soc. Phila., IV, pp. 340, 
344, 349, 353. Packard, 1881, U.S. Ent. Comm. Bull., VII, p. 56. 
Cresson, 1923, Trans. Amer. Ent. Soc., XLVIII, p. 200. 
