Plagiotrichus elongatus, new species

GALL. — Slight twig swelling, elongate in two varieties, globoid in one. Monothalamous or polythalamous, one to fifty or more cells in a cluster. The swelling slight, two or three times the normal stem diameter, up to 8. mm. in diameter, averaging 60. mm. long in two varieties, 8. mm. long in one; covered with normal bark. Internally solid except for an irregular, more or less continuous cavity completely filled by crowded, distorted, larval cells, each cell separate, with a distinct lining, but not separable. Near the tips of twigs of Quercus stellata and Q. breviloba.

RANGE. — Texas: Austin, Probably thruout a part of Texas and Louisiana.

[Kinsey describes three varieties of this gall; see paper for details]

- Alfred Charles Kinsey: (1922) Studies of some new and described Cynipidae (Hymenoptera)^©

Reference: https://www.biodiversitylibrary.org/page/45387508#page/187/mode/1up