Procecidochares grindeliae

Procecidochares atra (summer and autumn generations)

Procecidochares pleuralis

Procecidochares minuta

Procecidochares gibba

...reared at Alameda, Calif., from Grindelia robusta, presumably by Koebele many years ago. No record is obtainable as to the nature of the gall, but the plant is named on the label and several puparia are connected with the specimens. Another female was taken by Cockerell at Halfway House, Pike's Peak Trail, Colo., September.

Redescribed from numerous specimens. Twenty-nine specimens were reared from galls on Solidago at Great Falls, Va., by C. T. Greene (Hopkins No. 14819a) 

...types of setigera include.... "from leafy rosulate galls on Solidago nemoralis" ... reared in Virginia, near Washington by Theo. Pergande from galls on Aster which deform the stem and dwarf the plant; other unreared types of setigera are from Bristol, R. I. (Burgess), southern Georgia (Morrison), Baldwin, Kans. (Bridwell); additional unreared specimens of atra are from La Fayette, Ind. (Aldrich), French Creek, W. Va. (F. E. Brooks), Cherryfield, Me. (F. H. Lathrop), Smiths Cove, Nova Scotia (C. A. Good), and .... 

See [Procecidochares] minuta for Felt's specimens reared from Chrysothamnus in Utah.

PROCECIDOCHARES ATRA, variety AUSTRALIS, new variety
Described from three specimens. The type, a female, was reared at Waco, Tex., by W. Dwight Pierce, from head of Heterotheca subaxillaris; it emerged October 3, 1906. One male was collected at Llano, Tex., on October 23, 1905, by A. W. Morrill; the other was taken by sweeping at Orlando, Fla., on February 28, 1918, by G. G. Ainslie (Aldrich collection).

Described from 16 specimens of both sexes, reared "from gall on sunflower stem," by H. K. Morrison, at Fort Huachuca, Ariz. Emerged June 9 to July 18, 1883.

Felt, in his Key to Galls, (p. 198), and in 34th New York Report, for 1922, (p. 76), reports atra reared from galls on Chrysothamnus [now in Ericameria] at Manti, Utah, but the species was really minuta.
...
Other material which I assign to the species is as follows: .... Manti, Utah, June 24 to July 3, reared by H. R. Hagan from ovate woolly lateral bud gall on Chrysothamnus graveolens [now in Ericameria] (Felt's record, as atra)

[As Callachna gibba]

Redescribed from four males and two females reared in April, 1889, at Lafayette, Ind., by F. M, Webster, from galls on Ambrosia artemisiaefolia; two males and two females reared at Kirkwood, Mo., April, 1887, "from aggregated gall on Ambrosia" by Miss Mary E. Murtfeldt; 14 specimens of both sexes reared at Sioux City, Iowa, April, 1922, from " polythalamous gall on weed";

A revision of the two-winged flies of the genus Procecidochares in North America, with an allied new genus