United States. Say's descriptions are absolutely no guides to the species intended. M. Gervais adopts Say's species as good, and gives the following synonymy:[1]
"S. marginata, Say, Journ. Acad. Nat. Sci., t. ii, p. 100, &c.
S. morsitans, partim, Newp., Trans. Linn. Soc. London, t. xix, p. 379."
Length 4 inches.
Hab. Florida?
S. inæquidens.
S. viridi-brunnea; segmento-cephalico punctato, parvo, basali magno postice subtruncato; antennis interdum viridibus, pubescentibus, 17 articulatis; labio mandibulisque sparse subprofunde punctatis; laminis dentalibus elongatis; dentibus 6—8, utrinque intimis duobus arete coadunatis, duobus externis sejunctis, acutis; scutis interdum postice saturate viridi aut cseruleo marginatis; pedibus luteolis, gracilibus, longis; postremis robustis, articulo basali supra subeonvexo, intus 3—8, subtus 7—10 spinis; processu angulari 2—6 spinis; appendicibus analibus lateralibus dense profunde punctatis, elongatis, spinis apicalibus 3—5.
Greenish-brown; cephalic segment punctate, small, basal large posteriorly subtruncate; antennæ sometimes green, pubescent, 17 articulate; labium and mandibles sparsely subprofoundly punctate; dental laminæ elongate; teeth 6—8, on each side, the two inner closely coadnate, two external distant, acute; scuta sometimes margined posteriorly with deep green or blue; feet yellowish, slender, long, the last pair robust, with the basal joint above subconvex, within 3—8, beneath 7—10 spines; angular process 2—6 spines; lateral anal appendages densely profoundly punctate, elongate, with 3—5 apical spines.
S. inæquidens, Gervais, Suit, a Buffon, Aptéres, vol. iv, p. 277; Exp. Amer. Sud. (Castelneau) Myriap., p. 30.
""Wood, Journ. A. N. S., new series, 1863, vol. v, p. 25.
The cephalic segment is small, truncate posteriorly, and has its sides remarkably straight. The basal segment is very large, fully half again as broad as the cephalic. The antennæ are sometimes green or blue, and in all of our specimens pubescent on their distal portion. Their joints are short and almost globose. The scuto-episcutal sutures are well marked, but not so strongly as the sterno-episternal. The legs are slightly compressed. The basal joint has all of its margins well defined, so that it is scarcely subcylindrical, but rather subparallelopipedal. The spines are arranged in rows on elevated bases, so as to give the appearance of being on an interrupted crest or raised line. The apices of the lateral anal appendages are much prolonged, slightly curved upwards, impunctate and almost diaphanous. This species is separated from its southern representative, by the more rectangular and smaller cephalic segment and the larger basilar, by the more moniliform and fewer jointed antennæ, as well as by the differences in the structure of the lateral teeth and posterior pair of feet. I was at first disposed to consider the specimens as representing a species distinct from that of M. Gervais, but further examination has con-
- ↑ See Aptéres, t. iv, p. 276; et Tabl. des Myriap. Americ. (Exp. Amer. Sud. sept, part.) p. 30.
