White-lined Sphinx Moth (two photos)
Hyles lineata

moth

White-lined sphinx moth
Large, gorgeous White-lined Sphinx Moth in Taylorsville, UT. © Carol Davis, 4-28-2008

hummingbird moth
The White-lined Sphinx Moth is often referred to as a hummingbird moth because
  it resembles one in size and behavior.   Bear River Bird Refuge this day was
thick with these beautiful moths. See the caterpillar here. © Carol Davis, 7-20-06

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