Cynips quercus strobilana, n. sp. (as yet not reared)

On Quercus prinos, var bicolor [Quercus bicolor]. Large gall, at the tip of twigs, consisting of a number of wedge-shaped bodies, fastened by their poitned ends to a common centre. Diameter about an inch and a half. C q. stobilana [sic] (as yet not reared)

These specimens measure rather more than an inch and a half in diameter and look somewhat like the cones of some kinds of pine, for instance, of the scrub-pine, as they consist of a number from 20 to 25 or more of wedge-shaped bodies, closely packed together, with their pointed ends attached to a common centre. These wedges are hard and corky and break off very easily when the gall is dry. Each of them contains a hollow kernel with a plump, large larva inside. This gall is evidently produced by the sting of the insect on the single leaves of a bud, each leaf growing into the shape of a wedge.

- Baron Osten Sacken: (1862) Additions and corrections to the paper entitled "On the Cynipidae of the North American Oaks and their Galls"^©

Reference: https://www.biodiversitylibrary.org/item/22852#page/296/mode/1up