Biorhiza ocala, new species

Host. — Quercus chapmani Sargent.

Gall. — A thin-walled, fleshy gall growing singly and sessile on the side of roots which are 5-15 mm. in diameter. Galls are globular or with a point at apex, 4-6 mm. in diameter and covered with a very short dense pubescence, grayish if exposed or pale yellow if buried in the sand. In early spring.

Type locality. — Ocala, Florida. Collected April 17, 1914, when some flies had already emerged and others were cut out of the galls alive. They were not different from several males and females captured on April 17 and 18 at Ocala by sweeping on Q. chapmani, and these captured specimens form part of the type series.

Sphaeroteras ocala

Quercus chapmani
"Root" galls
Somewhat spherical, single, pale yellow, fleshy, thin-walled, on exposed roots in April. FL.

Quercus margaretta
"Root" galls
Almost globular, grayish, fleshy, covered with short pubescence, thin-walled, on roots. Adults out in April.

[Photo caption]
Single, sessile, on exposed roots of Q chapmani in April.

Sphaeroteras ocala (Weld 1921)

Hosts: Quercus chapmanii

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