Galls on creosote bush, formed by the creosote gall midge (Asphondylia sp.). A young gall is shown on the left, and a mature, dead gall on the right.

Old gall on sagebush

Young gall on sagebush

small galls on leaves of triangle-leaf bursage

Gall on saltbush

Saltbush gall broken open to show separate chambers where grubs develop (inset at bottom right shows a close-up of one grub)

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