THE MYRIAPODA OF NORTH AMERICA. 177 



Analysis of the species of Scolopocryptops. 



a. Femora of axial legs armed with, two large spines (inner sometimes atrophied in 



northern specimens of sexspinosus). 



b. Coxa> of preheusorial legs sinuate, but never truly dentate. 



c. Tarsi of anal pair of legs not densely pubescent. 



d. Cephalic plate not marginate Miersi. — 13. 



dd. Cephalic plate marginate. 



e. First antenna! joint not hirsute (eastern) Sexspinosus. — 14. 



ee. First two antennal joints not hirsute (western) Spinicaudus. — 146. 



cc. Tarsi of anal legs densely pubescent; olive brown; head, first and last seg- 

 ments reddish brown NlGRIDIUS. — 15. 



bb. Coxa? of preheusorial pair of legs dentate ; tarsi of anal legs densely pubescent. 



Gracilis. — 16. 



13. Scolopocryptops miersii. 



1844. — Scolopocryptops miersii Newport. Linn. Trans., 405 (Brazil); Gray. List Myr. 

 Brit. Mus., 7, 1844; Gervais, Apteres, IV, 298, 1847; Newport, Cat. Myr. 

 Brit. Mus., 56, 1856; Gervais, Cast. Exp. l'Am6r. du Sud, Pt. VII, Myr. and 

 Scorp., 36, 1859; Karsch - - - . 

 Not syn. — Meiuert. Proc. Amer. Phil. Soc, 181, 1886; Meinert, Myr. Mus. Haun., 

 in, 41, 1886, =f Scoloj). meinerii Pocock. 



Habitat. — South America, West Indies, Mexico, and California 

 {Karsch). 



Etymology. — Named after Mr. John Miers, an English gentleman. 



I have never seen any specimens of this species and the short char- 

 acteristic I have given in the key is taken from Karsch's key to the 

 species of this genus. 



14. Scolopocryptops sexspinosus. 



1821. — Gryptopa sexspinosus Say. Journ. Acad. Nat. Sci. Phila., 112 (Georgia and Flor- 

 ida) ; Say, ffiuvres Ent., 24, 1822; Gervais, Ann. Sc. Nat., 51, 1837; Newport, 

 Ann. and Mag. Zool., 100, 1844; Koch, Syst. Myr., 175, 1847. 



1844. — Scolopocryptops G-spinosa Newport. Linn. Trans., 407 ; Newport, Cat. Myr. Brit. 

 Mus., 57, 1856.. 



1847. — Scolopocryptgps sexspinosus Gervais. Apteres, iv, 298; Gervais, Cast. Exp. 

 PAmer. du Sud, Pt. vn, Myr. and Scorp., 36, 1859; Wood, Jour. Acad. Nat. 

 Sci. Phila., 37, 1862 (Salem, X. C; Cook Co., III.; Mississippi; Carlisle, Pa.; 

 Charleston, S. C; St. Louis, Mo.; Texas); Wood, Trans. Amer. Phil. Sob., 

 172, 1865; Porath, Sv. Vet.-Akad. Handl. Bih. 26, 1876 (San Paola, Brazil); 

 Kohlrausch, Archiv f. Natur., 54, 1878; Meinert, Proc. Amer. Phil. Soc, 179, 

 1886 (Md.; Mass.; X. Y.; Pa.; Va.; Ga.; Ala.; Ky.; Iowa; TT. T'a.; Cal.); 

 Meinert, Myr. Mus. Haun., in, 14, 1886 (Xew York); McNeill, Proc. U. S. 

 Nat. Mus., 326, 1887 (Pensacola. Fla.); Underwood, Ent. Amer., 63, 1887; 

 Bollman, Ann. N. Y. Lye. Nat. Hist., 110, 1888 ( Bearer Cr.. Tenn.); Bollman, 

 Ent. Amer., 7, 1888 (Arkansas). 



1847. — Scolopendropsis helvola Koch. Syst. Myr., 175 (North America); Koch, Die 

 Myr., ii, 34, Tab. lxxvi, f. 156, 1863. 



1886. — Scolopocryptops georaicus Meinert. Proc. Amer. Phil. Soc, 180 (Georgia) ; Un- 

 , derwood, Ent. Amer., 63, 1887. 



Habitat. — Massachusetts to Florida and Texas, west of the mountains 

 replaced by variety spinicaudus. 

 2097— No. 40 12 



