These are galls caused by the jewelweed gall midge - Schizomyia impatientis.
|Gall of the Jewelweed Gall Midge - Schizomyia impatientis|
The midge larvae gall the flower buds of jewelweed.
The photo didn't reproduce the orange color of the midge larva.
Rather a snug place to be... much safer than hanging around on the jewelweed's seedpod launch pads, eh?