Page:Wood 1865 - The Myriapoda of North America.djvu/48

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The color of this graceful little animal is an orange, approaching somewhat to fulvous. The antennæ are very thread-like. Some of the specimens have the last pair of feet very robust, with obconic joints. In others they are filiform and slender. The former are probably the males, the latter the females. I have, however, never been able to entirely satisfy myself as to this, owing to the great difficulty of dissection. The median linear depressions in the sterna are often dilated in their centre.

Hab. Illinois, Pennsylvania, &c.

The coxæ of the last pair of feet are very large. Their inferior surface is convex, and indented with from twenty to thirty small, round pits, irregularly arranged in rows. The remainder of the feet are, in our specimen, slender. I presume that the above character is persistent in both sexes, but cannot be certain on this point. There is a single specimen in the Museum of the Academy, labelled as having been found near Philadelphia by Joseph Leidy, M.D. I have never met with it whilst collecting. The length is about an inch and a half.