Trisoleniella saltata

Quercus catesbaei [laevis], cinerea [incana], falcata
Bud galls
Ribbed, thin-walled, 9 by 3 mm, occurring 2-3 together from a bud axil in early spring, easily detached. After dropping in late Mar in FL has power of jumping for some weeks.

[Photo caption]
On Q falcata. Described from Q cinerea [incana]. The writer has never reared it. Gall appears the last of Mar and is easily detached and has power of jumping for several weeks. Ashmead reared one adult after 11 months and some days.

Andricus (Trisolenia n. g.) saltatus n. sp.
The Blue Jack Jumping Gall

Galls. — Oblong-oval, longitudinally ribbed, brown galls, without a distinct cell, occurring two or three together and issuing from the bud axils in early spring; they are but slightly attached and fall to the ground on the slightest jarring of the tree.

This gall was discovered three years ago; it appears the last of March, and when first taken from the tree and for several weeks afterwards, has the power of jumping, due to the contractions and sudden relaxation of the larva within; some of them will jump three-quarters of an inch off the table. Out of nearly two hundred galls gathered the first year of its discovery, but one reached maturity; all the rest died. This specimen was just eleven months and some days in the gall. In 188.5 but three specimens were raised, one a male, and the period of development was the same. This year all my specimens seem to be dead, although I collected at different times and endeavored as far as possible to collect the most matured specimens; evidently the season was too dry for them. Last March I collected two females while ovipositing in the buds; the ovipositor was so deeply immersed in the bud as to enable me to capture the flies in my fingers before they had time to withdraw and escape; they agreed perfectly with the bred specimens.

Eumayria saltata (Ashmead) New combination

Andricus (Trisolenia) saltatus
Trisolenia saltata
Andricus saltatus

Distribution.--NC, FL

Biology.--Unisexual females only are known. Induces bud galls on Quercus falcata, laevis, incana, rubra. Galls in March-April, adults in April.

Eumayria saltata (Ashmead 1881)

Hosts: Quercus laevis

[Asexual generation bud galls found in Florida in the spring.]