FIGURES 264–268. Female postabdomens. 264 in Key to Adults of North American Genera of the Subfamily Cecidomyiinae (Diptera: Cecidomyiidae)

FIGURES 264–268. Female postabdomens. 264, Cystiphora taraxaci (Kieffer), 7th segment to cerci with detail of posterior end (dorsal). 265, Rhizocecis rhois (Coquillett), 7th segment to end with detail of cerci (lateral). 266, Gephyraulus mangiferae (Felt), 7th segment to cerci with detail (dorsolateral; arrow indicates apodeme of 8th tergite). 267, Asphondylia neomexicana (Cockerell), 6th segment to cerci (lateral). 268, Stephomyia sp, 8th segment to cerci with detail or posterior end (lateral).