individuals which have recently cast off their exuviæ? The eye-patches are somewhat parabolic. The joints of the antennæ are obconical, dark colored, and tipped with white. The lateral processes are small. The grooving of the scuta is in some specimens somewhat obsolete on the dorsum. The posterior scutum is light colored. I have never identified a male. Length, ½ to ¾ of an inch.
Hab. Philadelphia.— Dr. Joseph Leidy, Dr. H. C. Wood, Jr. Washington, D. C.— F. W. Putnam.— Collection Museum Comp. Zoology.
I. stigmatosus.
"Body brownish, with an impressed dorsal line, impressed white dots and spots; ultimate segments unarmed.
"Body cylindrical, emarginate, above dark brown, glabrous, an obsolete, dorsal, whitish, slightly impressed, acute line; segments each with a white dot on either side above, and a larger transversely oblong lateral one, which is gradually more completely bisected on the posterior segments into two distinct dots, which on the terminal segments resemble the dorsal ones; ultimate one abruptly narrower than the preceding and truncated; anterior segments attenuated to the head, which is wider than the anterior one; anterior segment as long as the second and third ones conjointly; spiracles somewhat prominent; eyes very distinctly granulated, subtriangular, black; head dark brown; labrum white."
Iulus punctatus, Say, Journ. A. N. S., new series, vol. ii, p. 102.
I. stigmatosus, Brandt, Recueil, p. 88.
" Gervais, Apteres, vol. iv, p. 179; Exp. L'Amer. du Sud, Tabl. Myriap., p. 18.
Species mihi ignota.
I. pusillus.
"Body with a lateral series of black dots, terminal segments unarmed."
"Body cylindrical, emarginate, above pale, obsoletely reticulate, and varied with reddish; a lateral series of large black spots, numerous longitudinal impressed acute lines beneath the stigmata becoming gradually shorter to the origin of the feet, beneath whitish; head white beneath the antennæ; antennæ two joints preceding the last, somewhat dilated, not attenuated at their bases, nor separated by a contraction; eyes black, longitudinally sublunate; ultimate segments unarmed longer than the penultimate one, rounded at tip and blackish. Length nearly half an inch. Common on the Eastern Shore of Virginia."
I. pusillus, Say, Journ. A. N. S., new series, vol. ii, p. 105.
I. minutus, Brandt, Recueil, p. 89.
" Gervais, Apteres, vol. iv, p. 178; Exp. L'Amer. du Sud, Tabl. Myriap., p. 18.
I. Sayii, Newport, Ann. and Mag. Nat. Hist., vol. xiii, p. 268.
Species mihi ignota.
