10 



ON THE CHILOPODA OF NORTH AMERICA. 



metatarsal primo secundo fere quater longiore, sequcntibus quinque conjunctis fere sequali ; superficie 



ventrali flavescente ; sternis medis canaliculars. 

 Selista forceps, llafincsque, Annals of Nature, 1st No., 1820, p. 7. 

 Cerm. coleoptrata, Say, Juurn. Acad. Nat. Sci., 1st series, ii. 



" " Lucas. 



" " vtr. Floridensis, Newp., Ann. and Mag. Nat. Hist. xiii. p. 95. 



" Floridana, Newp., Linn. Trans, xix. p. 353. 

 Scutigera Floridana, Gerv , Apt. iv. p. 225, ct. Tall. Myriap. (Exp. dans L'Ameriquedu Sud part. Sept.) 



In specimens preserved for some time in alcohol, all traces of the original color are 

 lost, the whole animal turning to a testaceous hue. The coloration of a very large 

 fresh female before me is as follows : — 



General tint is a very light olive-brown ; median stripe is black, continuous, strongly 

 defined, and extending from between the eyes to the posterior border of the pe- 

 nultimate scutum, where it abruptly terminates. Lateral stripes are black, strongly 

 defined, interrupted, and extending from the eyes to the posterior border of the last 

 scutum. The interruptions are so arranged that most of the scuta present three 

 blotches on each side. Anterior portion of the head with two stripes converging 

 anteriorly to the median line. In front of these there is a sub-round marking pro- 

 longed anteriorly. Most of the femora are jn'ovided with a very incomplete greenish 

 black annulus, which is, however, complete on the last pair. Tibia and tarsi biannu- 

 lated. Dorsal stomata bordered with brilliant white. 



Authorities differ as to the validity of this species. We have never seen C. 

 < ileoptrata, and therefore cannot offer an opinion. 



Specimens belonging to the Smithsonian Institution. 



There are in the collection of the Smithsonian Institution the following foreign 

 specimens of this genus : — 



C. clunifera, n. sp. — C. brunnea, robusta, maxima ; capite breve, antice breve piloso, linea lougitudi- 

 nalemedianaet utrinque altera indistincta curvata ante oeulum, et inter oculos unica transversa obsoleta, 

 insculpto, postiee marginibus elevatis et depressione lata ; mandibulis rnagnis, crassis ; scutis (postremo ex- 

 cepto) valde cariuatiset vix emargiuatis, spinulis numerosisasperatis, postiee tuberimagno, marginibus ele- 

 vatis, uudulatis, minute crenulatis; scuto prostremo medio canalicular, postiee valde emarginato; pedi- 

 bus robustis, artieulorum spinis modice brevibus, robustis; metatarsis pubescentibus, articulo primo 

 quinque sequentibus conjunctis fere sequale, his inter se fere requalibus ; sternis profunde canaliculars. 



Color of the specimen is at present brown, of an obscure olivaceous tint. When 

 alive, it was probably more decidedly greenish. The tuberosities on the posterior 



Where not stated the donor is believed to be the collector. 



