Kinsey: The Genus Neuroterus 
99 
Neuroterus irregularis Cook, 1902, Ohio Univ. Bull., ser. 6 (15), p. 267, 
fig. 25 (a, b) (Ind., on Q. macrocarpa) . 
Neuroterus quercus-majalis Dalla Torre and Kieffer, 1910, Das Tier- 
reich, XXIV, pp. 335, 820, 836 (Q. Prinus, Florida record only). 
Neuroterus irregularis variety aibipleurae, new variety 
FEMALE. — Face piceous, shading to straw yellow on the mouth- 
parts; antennse very light brown, straw color basally; thorax robust, 
piceous black; scutellum as wide as or wider than long; legs straw 
white to almost pure white; veins a medium brown; cubital vein distinct 
to the basalis; length 1.5-2.0 mm. 
MALE. — Thorax straw white, mesonotum dark brown anteriorly, 
straw yellow posteriorly; thorax more robust, the scutellum often as 
wide as long; abdomen rather dark brown. 
GALL. — As described for the species; on Quercus breviloba. 
RANGE. — Texas: Austin. Probably confined to an area in central 
Texas. 
TYPES. — 41 females, 42 males, 1 gall. Holotype male and paratype 
females and males at The American Museum of Natural History; para- 
type females and males at the U.S. National Museum, the Philadelphia 
Academy, the Museum of Comparative Zoology, and Stanford Univer- 
sity; paratype females, males, and gall in the Kinsey collection. La- 
belled Austin, Texas; spring, 1921; Q. breviloba (and Q, stellata) ; Pat- 
terson collection number 36. 
This variety, collected and bred by Dr. Patterson, is the 
only one which is readily separated on other than color char- 
acters. The broader thorax, with the scutellum often as broad 
as long, the lighter brown terminal portions of the antennse, 
and the lighter piceous color of the thorax, are good characters 
for distinguishing the insect from variegatus, 
Neuroterus irregularis variety irregularis (Osten Sacken) 
Cynips quercus irregularis Osten Sacken, 1861, Proc. Ent. Soc. Phila., 
I, p. 65. 
Cynips q. irregularis Osten Sacken, 1861, Ent. Zeit. Stettin, pp. 409, 413. 
Cynips irregularis Osten Sacken, 1865, Proc. Ent. Soc. Phila., IV, pp. 
340, 344, 349, 353. Packard, 1881, U.S. Ent. Comm. Bull., VII, 
p. 56. 
Neuroterus irregularis Ashmead, 1885, Trans. Amer. Ent. Soc., XII, pp. 
296, 304; 1887, Trans. Amer. Ent. Soc., XIV, p. 129. Ashmead in 
Packard, 1890, 5th Rpt. U.S. Ent. Comm., pp. 107, 110. Dalla 
Torre, 1893, Cat. Hymen., II, p. 42. Dalla Torre and Kieffer, 1902, 
Gen. Ins. Hymen. Cynip., p. 51. Beutenmuller, 1910 (in part only) , 
Bull. Amer. Mus. Nat. Hist., XXVIII, p. 134. Thompson, 1915 (in 
