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Indiana University Studies 
terial, collected from Q. Prinus, may prove a distinct host 
variety upon examination of a larger series. Wells, con- 
sidering only the plant structures, suggests that this variety 
has had an evolution along a line very distinct from tr- 
regularis, but the descriptions of the insects show a very close 
relation between the two, the differences in galls being prob- 
ably the results of host differences. 
Neuroterus irregularis variety variegatus, new variety 
FEMALE. — Face almost black, mouthparts dull piceous yellow; 
antennse brownish black, very light yellow basally; abdomen more slen- 
der, in large part jet black; legs straw yellow; wing veins dark brown; 
areolet varying from small to large; cubital vein distinct to the basalis; 
length 1. 5-2.0 mm. 
MALE. — Thorax yellow; mesonotum rather darker brown ante- 
riorly, yellow posteriorly; thorax slender; scutellum longer than wide; 
abdomen dark brown. 
GALL. — As described for the species; on Q. stellata and Q. alba. 
RANGE. — Oklahoma: Hartshorne. Arkansas: Danville, Wynne. 
Possibly confined to the more southern area just west of the Mississippi 
River. 
TYPES. — 62 females, 46 males, many galls. Holotype male, para- 
type females, males, and galls at The American Museum of Natural 
History; paratype adults and galls at the U.S. National Museum, the 
Philadelphia Academy, the Museum of Comparative Zoology, Stanford 
University, the California Academy, and in the Kinsey collection. La- 
belled Hartshorne, Oklahoma; April 29, 1920; Q. alba; Kinsey collector. 
This variety is very similar to irregularis and majalis, 
the insect averaging larger than irregularis, and the mes- 
onotum of the male being dark only anteriorly. From 
alhipleurde it is to be distinguished by the blacker, more nar- 
row thorax, and the black terminal portions of the antennae. 
I do not find differences between the insects from Q. alba at 
Hartshorne, Oklahoma, and Q. stellata at Danville, Arkansas. 
The two localities are probably in the same faunal area, but 
one might expect host varieties. 
In 1920, insects were emerging at Hartshorne, Oklahoma, 
on April 29 ; large larvae, not yet metamorphosing to adults, 
were in the galls at Danville, Arkansas, on May 1 ; but on 
May 3 at Wynne, Arkansas, the larvae were still small. 
