tremo (in mare ?) robusto, breve acuminata, articulis obconicis; sternis suturis stemo-epistemalibus et sulco mediano lato impressis.
Yellowish orange, polished; body anteriorly attenuate; head small; cephalic segment subtriangular, impunctate; antennæ moderately long, filiform, not acuminate, sparsely pilose, joints obconic;- mandibles short, thick, each with'a rather large, conical denticule; labium short; anteriorly very emarginate, impunctate; scuta sometimes with a very obsolete median line; feet rather long, pilose, slender, cylindrical, on each side 47; last pair (in male ?) robust, shortly acuminate, articles obconic; sterna impressed with a broad, median sulcus and sterno-epistemal sutures.
Strigamia fulva, Sayer, Proc. A. N. S., vol. viii, p. 109.
""Wood, Journ. A. N. S., new series, 1863, vol. v, p. 47.
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.
S. bidens.
S. aurantiaca, venuste polita; segmento cephalico triangulare, antice truncato, sparse late punctato, margine antico postico nonnihil latiore; antennis brevibus, filifbrmibus, articulis obconicis; labio sparse late punctato, sulco obsoleto, margine antico denticulis duobus obsoletis obtusis armato; mandibulis intus minute unidenticulatis; suturis scuto-episcutalibus nullis; pedibus utrinque 76, cylindricis, paris postremi coxis magnis; foveis signatis; sternis suturis sterno-episternalibus et sulco mediano impressis; squama preanali convexa.
Orange, beautifully polished; cephalic segment triangular, anteriorly truncate, sparsely broadly punctate; the anterior margin somewhat broader than the posterior; antennæ short, filiform, their joints obconical; labium sparsely broadly punctate, sulcus obsolete, anterior margin armed sometimes with two obtuse, obsolete denticules; mandibles within minutely unidenticulate; scuto-episcutal sutures absent; feet on each side 76, cylindrical; coxæ of last pair large and marked with little pits; sterna impressed with sterno-episternal sutures and a median sulcus; preanal scale convex.
S. bidens, Wood, Journ. A. N. S., new series, 1863, vol. v, p. 47.
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.
