172 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



Analysis of the species of Scolopendra. 



a. Femora of the penultimate pair of legs without spiues at their upper exterior 

 apex (Scolopendra) . 



b. First dorsal plate without a transverse sulcus. 



c. Second tarsal joints, except those of the anal or anal and penultimate pairs 

 of legs, armed beneath with a spine. 



d. Femora of anal legs with two spines, both within DEHAAXI. 4. 



dd. Femora of anal legs with 4-5 spines, always two beneath; angular spine 



simple or bifid _ SuB.spiNii'ES. 5. 



d</d. Femora of anal legs armed with 10-15 spines, 4-6 within, 6-9 beneath 

 and arranged in three series; angular spine tri- or quadrindj 



femora and tibi;e of anal legs margined MoRSiTANS. 6' 



. First dorsal plate with a transverse sulcus. 



e. Second tarsal joints of all the legs unarmed. Anal legs short, armed with 



10-12 spines, angular process simple or bifid; first eight auten- 



nal joints not hirsute WOODII. 7. 



ee. Second tarsal joints, except those of anal pairs of legs armed. 

 /. Length 50-70 mm in adults; spines of anal legs 10-18. 



(j. Anal legs stout, width of femora 2 in width of cephalic plate, apical 



process arufed with 4-5 spines (western species).. PACIIYPUS. 8. 



ft!/. Anal legs moderately short and stout, femora 2-J- in cephalic plate, 



apical process with 2-4 spines (eastern species) VIHIDIS.- -9. 



ff. Length 100-150 mm in adults ; spines of anal legs 17-25; anal legs rather 



long, apical process with 3-10 spines HEROS. 10 



aa. Femora of penultimate pair of legs with spines at their upper exterior angle (Col- 



laria). 



h. First dorsal plate without a sulcus. 



r. Anal legs long and slender, femora armed with 30-50 spines, api- 

 cal proces^. with 6-8 spines ; joints of antenna? 17 CRUDELIS. 11, 



4. Scolopendra dehaani. 



1841. Scolopendra dcliaani Brandt. Kecueil,59; Kohlrausch, Archivf. Naturg., 1881 ; 



Meiuert, Proc. Amer. Phil. Soc., 203, 1886 (San Francisco, Cat.; a type of Wood's 



Irispinipes); Underwood, Ent. Amer., 64, 1887. 

 1862. Scolopendra Inxpinipes Wood, Journ. Acad. Nat. Sci. Phila., 28 (San Francisco, 



Cal.); Wood, Trans. Amer. Phil. Soc., 166, 1865. 



Habitat. Cosmopolitan, found throughout the tropics, in United 

 States only in California (San Francinco). 



Etymology: Named after a Mr. De Haan. 



No doubt when this and other cosmopolitan species have been care-, 

 fully studied several geographical varieties may be recognized. 



5. Scolopendra subspinipes. 



American synonymy. 



1815. Scolopendra subspinipes Leach. Trans. Linn. Soc., 383; Gervais, Ann. Sc. Nat., 

 50, 1837; Lucas, Hist. Nat. Anim. Art., iv, 544, 1840; Brandt, Recueil, :~9, 

 1841 (Brazil)] Kohlrausch, Archiv f. Naturg., 96, 1881; Meinert, Proc. Amer. 

 Phil. Soc., 202, 1886; Meinert, Myr. Mus. llaun., in, 27, 1886; Underwood, 

 Ent, Amer., 64, 1887. 



