182 



T1JE MYR1AP0DA CF JNOKTIJ AMERICA. 



S. bothiuoi'Us. 



S. Isete rubons, robusta; segmento oepbalioo sparse punctata, piloso; antennis pilosis, n.odioe longis, baud acu- 

 minata ; mandibulis pilosis, intus dente magno, oonioo, aouto armatis; Iabio piloso, antice profunde emarginato, 



medio canaliculate; scuds pilosis, latis, brevibus, sine suturis; podibus plerumque (lavis, dense pilosis, utrinque 

 50; pans postremi coxis magnis et foveis niinutis multis imprcssis; sternis suturis stcrno-opisternalibus et sulco 

 medio obsoleto signatis. 



Bright red, robust; cephalic segment sparsely punctate, pilose; antenna pilose, moderately long, not acumi- 

 nate; mandibles pilose, within armed with a largo, conical, acute tooth; labium pilose, anteriorly profoundly emar- 

 ginate, medianly canaliculate; scuta pilose, broad, short, without sutures; feet generally yellow, densely pilose, 50 

 on each side ; last pair with the coxae krgo, and impressed with many minute pits ; sterna marked with stcrno- 

 episternal sutures and an obsolete median sulcus. 



8. bothriopus, Wood, Journ. A. N. 8., new series, vol. v, 1808, p. 46. 



The body is widest in the middle, but is much narrower at the anterior than at the 

 posterior extremity. The last pair of feet are scarcely longer than the preceding. This 

 species closely resembles 0. rubens, Say, and may possibly prove identical with it, as the 

 descriptions of that form are as usual epiite meagre. Length, 1 inch. 



Ilab. Pennsylvania. 



S. RUBENS. 



S. " saturate aurantiaca ; linea mediana duplici nigra e segmento corporis primo ad penultimuni ducta, segmento 

 cephalico subcordato, antennis pilosis, labio mandibulisquc laevigata punetis raris, mandibulis nigris, pedum 

 paribus 50. Long, una \\." 



Deep orange, with a black double line passing from the first segment of the body to the penultimate; cephalic 

 segment subcordate; antenna pilose; labium and mandibles smooth, rarely punctate ; mandibles black ; pairs of 

 feet 50. Length 1| inches. 



(iF.ol'iilLUS RUBENS, Say, Journ. Acad. Nat. Sci., Philada., 1st series, vol. ii ; (Euvr. Bntom. i, p. 25. 

 " » Gervau, in Ann. Sci. Nat., 1837, p. 52; Apt. iv, p. 320. 



" " Lucas, Hist. Nat. Anim. Art., p. 549. 



« " Newport, Ann. and Mag. Nat. Hist., xiii, p. 101 ; Linn. Trans., xix, p. 435; (Jatal. Brit. 



• " Mus. Blyriapoda, p. 87. 



" Ilah. In America Boreali." 

 Species mihi ignota. 



S. PULVA. 



S. fulvo-aurantiaca, polita; corpore antice attenuate ; capite parvo; segmento cephalico subtriangularc, impunc- 

 tato ; antennis modice longis, filifonnibus, haud acuminatis, sparse pilosis, articulis obconicis ; mandibulis brevibus, 

 crassis, singula denticulo modice magno eonico; labio breve, antice medio valde emarginato, impunctato ; scutis 

 interdum linea media obsoletissima; pedibus modice longis, pilosis, gracilibus, cylindricis, utrinque 47; pari pos- 



