Kinsey: The Genus Neuroterus 
125 
time the leaves begin to expand. The variety is undoubtedly 
confined to Quercus prinoides, a distinct oak which always 
has a unique cynipid fauna. There are so many well-defined 
differences between vesicula and affinis that it would be a 
great loss to consider the two as synonyms. Beutenmuller 
in 1910 stated 'T can find no differences between the adults 
and galls of N. affinis ^ ^ * and vesiculus, and they 
are, as surmised by Bassett, one and the same species.'' And 
thereupon he buried affinis in synonomy. But Bassett in his 
original description said 'T should have been disposed to con- 
sider this species a variety of C. vesicida, which, both in gall 
and in insect, it closely resembles, had not late discoveries 
shown that dimorphic species often in one generation closely 
resemble each other and in the next develop characters that 
fully establish their non-indentity." Bassett saw that the two 
insects are related but distinct, and it is a step backward to 
ignore such non-identities. 
Neuroterus vesicula variety cerinus, new variety 
FEMALE. — Eyes large, but hardly protruding beyond the cheeks; 
cheeks quite narrow; antennse brown, bright yellow basally; thorax 
rather wider than the head; scutellum rather narrow and rugose, the 
furrow at the base narrower than in other varieties; legs bright golden 
yellow, brownish black on the coxae; areolet of nioderate size or smaller; 
length 2.7 mm. 
MALE. — As described for the species; with the antennae basally as 
rich brown as apically, the first two segments rufo-brown; the eyes 
larger than in the female of cerinus^ but smaller than in the male of 
vesicula or ocularis; areolet a little larger than a moderate size. 
GALL. — A bark gall, as described for the species. On stems of 
Quercus stellata (and Q. breviloba?) (fig. 48). 
RANGE. — Texas: Austin (Patterson coll.). 
TYPES. — 1 female, 4 males, 13 clusters of galls. Holotype male, 
para type galls at The American Museum of Natural History; paratype 
female, males, and galls in the Kinsey collection; paratype galls at the 
U.S. National Museum, the Museum of Comparative Zoology, and the 
Philadelphia Academy. Labelled Austin, Texas; February 25, 1921, 
and February 23, 1922; Q. stellata; Patterson collection number 61. 
Dr. Patterson is to be credited with the discovery and 
breeding of this interesting insect. He reports this gall as 
appearing to be several weeks old on February 1, 1923, the 
adults emerging about the first of March in 1921, and on 
February 23 in 1922, fully half of the adults having emerged 
