102 KULLKTIX n:, IMTEI* states NAilO.VAL MUsKl'Nf. 



Male: Anal lejjs iiiudtratclv short ; t'rinora r<msitlerably .swollen on 

 the inner side, and aimed on thr posterior iialt'with two lar^r, slightly 

 rniv«'d.l)luntly serrated spines; tibia exravated on th«' inner side; the 

 |)osterior halt' produced into a bipartite contorted lobe, of whi(;h the 

 posterior is armed with a short, cni'\ed, sharply scirated spine. The 

 last twotaisal Joints of anal and pennltiniiite pairs of le^^s suleute on 

 tlu' inner si<le. Fien^jth, 17. ."»""". 



Althou;,di the niah's of ne;irly every species of the subgennw Xeolitlio- 

 hiiis sln)w some modifications of the anal ley:s, yet thiH sjieiiea presents 

 a cnrions pecniiarity and approaches to that of L. hihihiatus in the ex- 

 tent of the nio<lilication. The above description is based iiiM)n a sin/ile 

 male specimen. 



41. LithobiuB latzeli Mciiiert. Miirksville hikI Liiray, Va.; L. M. ITiulerwiHwl. 

 Antenna', LM»-,'U: coxal pores, ."», ti. ."», 4-(», 7, 7, (»; prosternal teeth, 



9-4-l» or lO-fKh spines of tirst ])air of lej;s, 2, .i, 1'; sjnnes of anal and 

 pennltimate i)airs, 1, li, '.i, 2. 



42. Lithobius underw^oodi, sp. iiov. 



hiuffnimx. — Related to L. jur€ntnt<,\mt the prosternal teeth 0-4-7; 

 coxal pores, 7, 7, 7, (>, transverse; size innch larj^er. 



Habitat. — Macon, (la.; L. M. Uiuh'rwood. 



Typr.—Avv. 10.-i4L', 22; V. S. Nat. Museum. 



/hsrriptinn. — Dark siiiniuj; brown, hea<l and antenna' darkest, legs 

 l»aler. Robust, attenuated posteriorly, moderately smooth; head wider 

 than lonj; (4:. 'J). Antenna' lonj^, extenclin^ to the tenth sej>n»eiit, arti- 

 cles ,'i2. Ocelli I'.j, in (J transver.sc series. Prosternal teeth ii+7. Coxal 

 pores, 7, 7, 7, t>, transveise. Spines of tIrst pair of le^s, 2, 3, 2; of 

 penultimate and anal piiir. 1, .">, 3, 2. Anal and penultimate pairs of 

 lej>s eacli with two <-liiws. ( 'oxa' of the last three jiairs of le^s laterally 

 armed. 



Female: The last two tarsal joints of anal and penultimate pairs of 

 le}4:s sulcate on the inner side; claw of genitalia larj^e and loun, indis- 

 tinctly tripartite; spines 24-2, stout, inner shortest. Length, 20""". 



This species is very ditferent trom A. jurcntvs, which is the only 

 North American species beh)ny:ing' to the sanu' group, although they 

 may have originally sprung from the same stock. This species is de- 

 scribed from a female which has the anal pairs of legs broken otf. 



43. Lithobius rex. sp. nov. 



J)ia(j)iosift. — Related to A,, ralidus, of Europe, but the antenuiP 20- 

 jointed. 



Habitat. — Tallulah, Ga.; L. M. TJuderwood. 



Type.— Act'. 10542, 21 ; U. S. Nat. Museum. 



Description. — Grayish-bro^^n, head, autennje, first dorsal plate, ard 

 margins of others dark. Robust, attenuated i)osteriorly, dorsal plates 

 much wrinkled, sparsely pilose; hejui wider than long ((>:.">). Antenuje 



