72 lUJLLKTIN l»!, r.NITKD STATES NATIONAL Ml'SKUM. 



sioiis. JSpiriU'N's round, aiitrrior stan'rly <'iiljirj;«'(l, rest iirarly <mhui1. 

 I''irst pair of foet short, anterior and jMisterior snlx'^iual. former more 

 I'obiist. Posterior <'oxa* moderati'ly intlate*!, ]>il(>se, pores few (')-0), iir- 

 ran<;ed alon<,' the ventral plate, \vhi<h is wide with the .side straif^ht 

 and stronj^ly eonverj^in;"-. Pairs of teetofmale -t.'i, last moderately 

 tliiekened, i)ilose and armed; female 15, last rather slender, less i)ilose 

 than ':::i'e, armed. L(Mij>th of hody 18.5-21.5"""; width, 0.7-1"'"'. 



II/ihit(ii — Salem, ln<liana. 



I nave examined a male and a female. 



S n 1 )ge n us An It Ulthohi us. 



Lithobius holzingen. s\t. nov. 



Chestnut brown, head dark, antenna! and feet paler. Kolmst, smooth, 

 sparsely i)ilose; head subrotuud, som«'\vhat wider than Ion;;. An- 

 tenna^ moderately lonj;, joints L'0-2S, long. Ocelli 15-20, arranged in 

 5 or G sj'ries. Prosternal teeth 4. Coxal jtores .'{, 4, 7, 3-5, G, 1, 5, some- 

 what traverse, large. Spines of first pair of feet 2, 3, 2; penultimate 3, 

 3, 2; last 1, 3, 2, 0-1, 3, 3, (J. Posterior pair of feet moderate, in the 

 male the fifth joint is produced on the inner side into a short blunt pi- 

 lose lobe. Claw of the female genitalia sliort, wide, tripartite; spines 

 short and st(mt, sube(jual. Lengtii of male 10-21"'"'; female 12-18"'"'. 



H(ihi(<(t. — VViuona, Minnesota. 



This si)ecie8 is related to trllohus, but is distinguished from it by the 

 greater number of antennal Joints, eoxal pcu^es, and the larger size. It 

 is des(;ribed from three males and nine females; I have named it in 

 honor of its colleetor, Mr. J. M. llolzinger. 



