This large impressive moth was found at the Redwood Glen site on a sunny afternoon.  It is the Ceanothus moth.... a member of the Giant Silk Work family of moths.  Presumably, it wintered over in its cocoon, and emerged on the first warm day of Spring.  They can be found in the redwood forest and caterpillars eat madrone, California lilac, and coffeeberry.  

photo credit:  Paw Paw 2009