Dryocosmus floridensis
Dryophanta floridensis
Andricus peltatus
Host. — D. floridensis was described from Spanish oak, Q. rubra (falcata) and from Blue-jack oak, (cinerea [incana]) from Florida; peltatus from Q. marilandica., and the writer here adds the following unrecorded hosts: Q. nigra., Q. imbricara, Q. phellos, and Q. palustris. He has reared adults from palustris, rubra, and imbricaria.
Biology. — About Washington the galls may be found just starting in early May. They are then bright scarlet. As they develop the bracts become green and unless gall is parasitized turn brown about the time the adults emerge which is about the middle of June. For rearing the galls must be left on the tree until the pupa stage is reached and the living flies cut out of the dry galls later. May 27 was the earliest date at which a pupa was noted. By June 19, 1921, almost all the flies were out.
Habitat. — The species seems to belong to the Atlantic coast plain. The writer has seen galls at Chesapeake Beach, Md. ; East Falls Church, Rosslyn, and Fredericksburg, Va. ; Fairfax, S. C. ; Marianna, River Junction, and Glainesville. Fla.; Troy and Dothan, Ala.: Palestine, Houston, Trinity, and Texarkana, Tex.; and at Tuskahoma, Okla. J. L. Zabriskie collected galls at Flatbush. N. Y.
