Neuroterus (Diplobius) floricola bisexual form

Hosts: Quercus douglasii

GALL. — A small, egg-shaped capsule in the ament. Monothalamous, rarely two or three more or less fused. A modified anther, each capsule egg-shaped, almost smooth, microscopically coriaceous, drying brownish yellow, averaging 1.5 by 0.7 mm.; thin-walled, entirely hollow. Scattered in the aments of Quercus Douglasii (fig. 23).

RANGE. — California: Three Rivers. Probably occurs thruout the range of Quercus Douglasii.

This gall appears very early in the spring, the adults probably emerging a short time after the buds open on the oak. The species probably has an alternate, agamic generation. It is so closely related to the other species of the sub- genus Diplobius that, as with them, the alternate should be a leaf vein or petiole swelling. As pointed out in the introduction to this paper, the monothalamous, precisely formed anther gall is not as specialized as it looks, but is the inevitable result of a simple proliferation of anther material.

- Alfred Kinsey: (1923) The Gall Wasp Genus Neuroterus^©

Reference: https://www.biodiversitylibrary.org/page/53512324#page/294/mode/1up