48 ON THE CHILOPODA OF NORTH AMERICA. 



8. ljevipes, n. sp. — S. aurantiaea, robusta; oapite modice uiagno, rare obsolete punctato, sparse piioso; 

 seginento basilari margine antieo postieo nonnihil latiore; mandibulis magnis, singula intus denti- 

 culo inagno aeuto armata ; dente mandibulari, gracile, longo; scutis latis, brevibus, suturis scuto-epis- 

 cutalibus nullis ; pedibus modice longis. utrinque 69, pari postremo (in mare?) longo, valde incrassato, 

 illieo acuminata, articulis obcouicis, (in femina?) parvo, gracile, articulis subcylindricis ; suturis stcrno- 

 episternalibus distinctis; squama preanali postice valde angustata. 



One of the specimens lias the last pair of legs very thick and long and vertically 

 compressed. They are composed of eight joints, all of which are obconic except the 

 last, which is very short and rapidly acuminate. This individual we believe to be 

 the male. The other, the female, has the hindmost legs very slender, with the coxal 

 joint proportionally very much larger than in the male. 



Hub. — Georgia. Museum of Academy ; Dr. J. LeConte. 



S. TVENIOPSIS, n. sp. — S. dilute fulva ; corpore valde depresso, modice lato, antice leviter angustato; capite 

 magno; segm#nto ceplialieo subtriangulare ; antennis brevibus, moniliformibus, postice leviter depressis, 

 crassis, antice cylindricis, haud acuminatis, pilis brevissimis mollibus paucis; labio breve, lato, antice 

 obsolete bidentato, sulco mediano leviter itnpresso ; mandibulis crassis; scutis brevissimis, sine suturis 

 sed interdum linea mediana obscura; sternis brevissimis, singulo depressione submediana ovata, in cor- 

 pore antieo conspicuissima ; pedibus brevibus. crassis, cylindricis, baud pilosis, utrinque 141, pari 

 postremo (in femina?) gracile, breve, (in mare?) ? Long. unc. 4J. 



In our specimen the color is very light, but originally may possibly have been an 

 orange. The body is almost destitute of polish. The epimeral plates are very large. 

 We are indebted to Dr. J. L. Le Conte for the specimen, which he captured in the 

 mountains of Georgia. 



S. maculaticeps, n. sp. — S. sordide aurantiaca, polita; corpore robusto, subsemicylindrico, antice modice 

 attenuato; capite modice parvo, obscure saturate rubro, minute albomaculato, in lateribus sparse piioso; 

 antennis loDgis, leviter pubescentibus, haud acuminatis ; mandibulis crassis, obscure quadridentatis, 

 pilis paucis, denticulo antieo utrinque magno, conico ; labio impunctato, antice vix emarginato, medio 

 canaliculato; pedibus modice longis, gracilibus, subcompressis, utrinque 77, et superfieie ventrali 

 sordide flavis; scutis lasvibus sine suturis; sternis laevibus, suturis sterno-episternalibus valde impressis 

 et plerumque postice depressionum irregulariter ovatorum transversarum pari; pedibus postremis 

 ("stylis analibus") (in mare solum ?) robustissimis, supra subcomplanatis, subtus convexis, acuminatis. 



The cephalic segment is slightly narrowed anteriorly, and the upper surface of the 

 whole head is marked with very small whitish dots. The anterior and posterior 

 extremities of the body are perhaps a little darker in color than the intervening 

 portion. The inferior aspect of the head is of the same color as the superior, contrast- 

 ing with the under surface of the body. Near the posterior border of each sterna 

 there is a pair of subequal oval transverse depressions. The legs are almost destitute 

 of hair, having occasionally, however, a few very short ones. 



Specimen belonging to the Smithsonian Institution. 

 294 | 1 | Upper Colorado. | Lieut. J. C. Ives, U. S. A. | H. B. Mollhausen. | Unc. 2d | 



