Probing for nectar with proboscis on flower heads of the composite Eriophyllum confertiflorum (or "golden yarrow"...in the Sunflower family = Asteraceae = "composites", or just "comps" for short :-).

Characters indicating the ID of Variable Checkerspot here are:

  1) paired white spots along dorsum of abdomen;
  2) yellowish-orange antennae (no black); and
  3) mostly blackish "checkerspot" pattern on wings...with red spots along the distal margin and mostly white spots (plus some red) in interior area.

Also found in the general vicinity were the adult and chrysalis in the thumbnails below: