palpus

When you touch him, he draws up slowly one leg after another, or moves a palpus feebly.

It may be distinguished by the fact that the middle joint of each palpus is of uniform size from end to end instead of tapering toward its outer end.

This species may be known from Harris's Checker-spot by the fact that the middle joint of each palpus tapers from the middle to the tip and that the tibia of each front leg in the male is slender rather than stout.

Terminal joint of each palpus less than a third as long as the middle joint.

Each short palpus has a large middle joint and a small joint at the tip.