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Indiana University Studies 
known. Altho in only a single instance, pattersoni, described 
in this paper, are the direct alternates known for any variety, 
it is perfectly obvious that all varieties may have forms of 
the two sorts here described. Beutenmuller, in 1910, mistak- 
ing the bisexual perminimus as a synonym of the agamic 
variety niger, made the statement that the species was 
“double-brooded” and combined into one the data for the two 
insects. “Double-brooded” is practically the correct state- 
ment, for the two forms differ only in being agamic or bi- 
sexual. The galls do not differ, and there is not even the 
difference in abdominal size and shape which is usually evident 
in the females of alternate forms of Neuroterus. The agamic 
generation starts growth in mid-summer or later, the galls 
maturing in August or later ; insects do not emerge until well 
along in the following spring, from February to late May, 
depending on the locality. The bisexual form follows late in 
the spring, emerging in mid-summer, June thru July. The 
species differs from some others of the genus in having the 
emergence dates a month or two later for both forms. 
Neuroterus niger variety alimas, new variety 
bisexual form 
FEMALE. — Color generally rufo-piceous, the legs in no part darker 
than a very light brownish yellow ; areolet rather small ; length 
0.7-1.2 mm. 
MALE. — As described for the species; eyes much larger than usual; 
the third segment of the antenna slightly lengthened, very slightly 
curved. 
GALL. — Rather slender, elongate, distinctly bounded on the upper 
surfaces; without a trace of a central point; often two cells somewhat 
fused; on Quercus virginiana. 
RANGE. — Texas: Austin (Patterson coll.); Leander. Probably 
confined to a region in central Texas. 
TYPES. — 1 female, 15 males, and 3 galls. Holotype female, 
paratype males, and galls at The American Museum of Natural History; 
paratype males and galls in the Kinsey collection; paratype males at 
the U.S. National Museum, the Museum of Comparative Zoology, and 
the Philadelphia Academy. Labelled Austin, Texas; April 16, 1921; 
Patterson collection number 80. 
Dr. Patterson states that this gall is very difficult to find. 
He bred adults, both males and females, on April 16, 1921. 
The male is peculiar in being more distinct from the female 
than in any other variety of this species. It suggests a rela- 
