Callirhytis myrtifoliae

Quercus myrtifolia, phellos
Flower galls
Arrowhead-shaped, one-celled, scattered along among normal stamens on staminate axis, drying to black.

[Photo caption]
On Q myrtifolia. Also on Q phellos. Adults out in early June (DC from galls on Q phellos).

Andricus myrtifoliae, sp. nov.

Gall.— In clusters on the blossoms of Quercus myrtifolia. Monothalamous. Small, cone-shaped bodies, each containing a single larval cell. When dry the gall is dark brown or almost black. At the point of attachment it is flattened, and from this part it graduallv tapers to a blunt point at the apex. Length 2.5-3 mm.

Habitat. — Jacksonville and Palat Ka, Fla. (Lewis H. Weld.). The galls of this species were collected by Mr. Weld in April, 1914, and the flies emerged in a paper package and were all dead when he unpacked his Florida material in July, 1914. Mr. Weld informs me that the galls looked about the same in colour when they were collected, but they may be greenish when they first appear. The male is black with pale, yellowish brown legs and antennae. The latter is 15-jointed, with all the joints stouter, the 3rd excavate beneath.

Callirhytis myrtifoliae (Beutenmueller 1917)

Hosts: Quercus inopina, myrtifolia

[Sexual generation catkin gall found in Florida in the spring.]