66 
Indiana University Studies 
MALE. — As described for the species. 
GALL. — A small swelling of closely packed larvel cells, without 
much other tissue; on petioles, young stems, and flower stems of Quercus 
prinoides. 
RANGE. — Massachusetts (Thompson). Rhode Island: Providence 
(Thompson). Connecticut: Waterbury (Bassett). New York, New 
Jersey, Pennsylvania (Beutenmuller) . 
TYPES. — Females, males, and galls. Holotype female at the Phil- 
adelphia Academy; paratype females, males, and galls at The American 
Museum of Natural History, the Museum of Comparative Zoology, in 
the Beutenmuller collection (?), and in the Kinsey collection. From 
Waterbury, Connecticut; June 10, 1874; Q. prinoides; Bassett collector. 
These galls are inconspicuous swellings, affecting prob- 
ably any young part of the oak. The insect starts growth 
with the unfolding of the buds, emerging late in May and 
early in June in New England; Bassett found galls in part 
empty by June 10. 
Neiiroterus vernus variety tectus 
agamic form abundans Kinsey 
Most references to the bisexual female involve the agamic female. 
Neuroterus tectus form abundans Kinsey, 1920, Bull. Amer. Mus. Nat. 
Hist., XLII, p. 339. 
FEMALE. — Differs from the bisexual female only in having the 
abdomen larger and more oval rather than angulate. 
GALL. — Not certainly identified, but probably a slight swelling of 
leaf midveins. 
RANGE. — As given for the bisexual generation. 
TYPES. — Females at the Boston Society of Natural History and 
in the Kinsey collection. Labelled Rhode Island or Massachusetts; May 
10, 1907; Q. pnnoides; Thompson collector. 
This insect begins development in midsummer, emerging 
in the following May. Leaf vein swellings in the Thompson 
collection may belong to this generation, but the data are 
not certain. I used the Thompson collections when I named 
this form, and that should constitute the type material rather 
than the Bassett material which I named in 1920. Bassett 
found the agamic females ovipositing, but did not distinguish 
them from the bisexual form. Millett Thompson also observed 
agamic insects ovipositing, and from the marked buds ob- 
tained galls and adults of the alternate generation. The 
credit of observing this heterogeny should be given to both 
Bassett and Thompson. 
