Female Thread-waisted Wasp with Nest
(The nest is being closed, note the pebble must be close to the wasp's body weight. A paralyzed caterpillar with wasp eggs is sealed down the hole)

I think this is probably Ammophila procera since I can see the reddish (rugose coloration on the thorax.

Bug Net Info bugguide.net/node/view/156848

Thread-waisted wasp info

Hymenoptera (Membrane-wing insect) info

Rainier Vista Trail 1155, Pierce County, Washington, USA
Scree Slope Elevation ~ 5700 feet (1750 m.)
22 July 2006
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