Callirhytis infuscata

Quercus catesbaei [laevis]
Leaf galls, detachable
Woolly midrib cluster on under side in fall dropping in late Nov. When wool weathers away each element is white and flat-topped.

Quercus cinerea [incana], laurifolia, marilandica, myrtifolia, phellos
Leaf galls, detachable
Globular, fleshy, densely covered with yellow wool, single or cluster on midrib on upper surface in fall, dropping when mature, then the wool coming away clean.

Callirhytis infuscata (Ashmead)

Andricus infuscatus

This species was described from Jacksonville, Fla., from galls on Quercus catesbaei [laevis], the adults emerging in March. The species is here transferred to Callirhytis. The writer has collected the galls on the above host at Green Cove Springs, Marianna, River Junction, Madison, Tallahassee, Carabelle, Gainesville, Ocala, St. Petersburg, and Clearwater, Fla. Similar galls were seen at Marianna on Q. marilandica and Q. cinerea [incana] and on Q. laurifolia at Gainesville, Ocala, and Clearwater. Galls collected November 20, 1919, at Daytona on Q. laurifolia and sent to Washington and Evanston for rearing gave flies May 23, 26, June 3 and 15, 1920. From galls collected at Savannah, Ga., November 2G, 1919, living flies were cut March 14, 1921, having pupated the previous November. Galls on Q. myrtifolia collected at Daytona November 20, 1919. gave flies May 23, 1920, but some galls still contained larvae as late as September 4, 1920, so that the emergence may be distributed over at least two seasons. The writer has been unable to separate these reared specimens from the types of infuscata.

Andricus infuscatus

Globular, fleshy, monothalamous leaf gall with dense, yellow wool, diameter 5 to 6 mm, on upper surface, on Q catesbaei [laevis].

Andricus infuscatus, n. sp.

Quercus catesbaei [laevis]

Gall.--A globular, fleshy gall, densely covered with yellow wool; diameter .23 to .25 inch. It is attached by a slight point to the upper surface of the leaf and when mature is in reality nothing but a hard, tough, larval cell, covered with wool; the wooly covering is easily detached. It is monothalamous; occasionally several galls occur together on the leaf compressing one another into odd shapes but the galls fall to the ground, separate and renew their globular form, and the fly reaches maturity in the damp earth.

Described from several specimens reared in March.

Callirhytis infuscata (Ashmead 1887)

Hosts: Quercus laevis, myrtifolia

[Asexual generation detachable leaf galls found in Florida in the fall.]