Walnut Sphinx Moth

by Stephanie Suesan Smith, Ph.D. on August 17, 2010

This Walnut Sphinx Moth (Amorpha juglandis) was on my porch rail one morning.  The moth’s colors vary from light to dark, according to the bark of the trees around where he was born.  This makes any one moth unique.  The adults do not feed and I have a porch light, so love may have been on his mind.  The caterpillars eat hardwood trees such as pecans and walnuts.  They also apparently squeak when disturbed.  That must unnerve some poor bird who picks them up enough so that it drops them immediately.

Walnut Sphinx Moth (Amorpha juglandis)

Walnut Sphinx Moth (Amorpha juglandis)

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