(.039 inch .-- Translator's Note.) For this reason they are of no use whatever for walking; they do not even bear upon the supporting surface, being kept off it by the obesity of the chest.

The organs of locomotion are something altogether different.

The grub of the Capricorn moves at the same time on its back and belly; instead of the useless legs of the thorax, it has a walking-apparatus almost resembling feet, which appear, contrary to every rule, on the dorsal surface.
The first seven segments of the abdomen have, both above and below, a four-sided facet, bristling with rough protuberances.

This the grub can either expand or contract, making it stick out or lie flat at will.

The upper facets consist of two excrescences separated by the mid-dorsal line; the lower ones have not this divided appearance.