...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.
”- J. M. Aldrich: (1929) A revision of the two-winged flies of the genus Procecidochares in North America, with an allied new genus©