|Photo by Ned Harris - This gall is relatively 'fresh'|
|Photo by Ned Harris - Same kind of gall, but dried out.|
Other species of midge lay eggs in different areas/parts of the creosote bush. The corresponding galls look different. The gall below looks like it's composed mainly of crystallized sap.
|Photo by Gene Spesard 1/15/2014|
The fruits of the creosote bush (fruit = the thing that has/holds the seeds) are furry (not spiny) and white.