Catalog of Sphecidae at Cal Academy (http://www.calacademy.org/research/entomology/Entomology_Resources/Hymenoptera/sphecidae/Genera_and_species_PDF/introduction.htm)
Mostly about 1/2" (13 mm) long; color fl; head with inner margins of eyes notched; front wing with 1 submarginal cell, marginal call pointed apically; and make long (up to 8+"/20+ cm) tubular mud nests provisioned with spiders.
Mostly about ½" (13 mm) long; color fl; head with inner margins of eyes notched; front wing with 1 submarginal cell, marginal cell pointed apically; and make long (up to 8+"/20+cm) tubular mud nests provisioned with spiders.
Mud daubers are solitary wasps, they are not social and do not live in colonies.
The sphecinaemud daubers overwinter as full-grown larvae, pupate in the spring, and emerge shortly thereafter.