10 ULLLKTIN 10, IXITEl) STATES NATIONAL MISKIM. 



17. PolyxenuB fasciculatus S:iy. 



roiniiuMi iit Little K<M;k, live were ol)taiiie«l at AiitoiiM' iiiid oii« iit 

 nitiniii Tlnih>. 



18. Pauropua lubbockii i'arUnnl. 



A tew siH'cliiu'iis wrn* oWtaiiieil at Little INm k. 



19. Linotsenia bothriopa ( Wooil i. 



i have ifceiveil one s|)eeitii<Mi that was colh'eted near Litth* It<u;k by 

 .Mr. iliitcheison, 



20. Liiiotaenia robusta (Mi>iiicrt). 



Srolio/tlanrx rohiistiix Moiiu'it. Vrov. Amor. I'liil. S<m'., 224, 18WJ ( f X, A.) 

 Frontal plate iM(\scnt. Fulvou.s, head and antenna* dark. Not robust, 

 attenuated anteriorly and posteriorly: moderately smooth, sparsely 

 ])ilos('. IMriiensorial lect smooth, sparsely pilose; sterntim sub <'ordi- 

 Ibrm, lenj^th and width subecpial; eoxa* a little wider than lon<;, un- 

 armed; tooth stron*;-, acute; elaw small, a little curve*!. ('ephali(; plate 

 somewhat wider than Ion;*', smooth, sparsely pilose, si(U*s stronj^ly 

 rounded, slijihtlydiveij^inj,', posterior marj;in only (H)veringa small part 

 of basal i>lat«', basal plate two-thirds as lonj; as cephalic, twice as wide 

 as h)Uii. Antenna' moderately short, articles short, jienult and ante- 

 penult not notict'ably sliorten<'<l. Dorsal plate subsmooth, anterior 

 prescuta short, mcflian and posteiior long. Spiracles round, very 

 small. Ventral plates with an obsolete nu'dian tbveola, pore.s on i)oste- 

 rior margin. First i>air of legs short, posterior longer than anterior. 

 Posterior eox.e moderately intlated, jjores about 12 to IS, snuill, in three 

 series; last veutral plate triangular, small, sides moderat«dy converg- 

 ing. Posterior ])air of legs longer than penult, crassate in the male, 

 slender in tin* female; claw large. Pairs of legs of male 51-55; of 

 fem-ile 54-5i>. Length of male L'7-;i3""": of female 34-52""". 



Habitat. — Little Rock, Okolona, Arka<lelphia, and Ultima Thule. 



I refer this species provisionally to L. rohusta (Meiuert), although it 

 differs from Meinert's description by rather unimjKjrtant characters. I 

 have also seen s[)ecimens of this species from Tennessee. 



21. Linotceiiia branneri, s\>. iiov. 



Frontal i)late present. Fulvous, lu'ad and antenna* dark, llobust, 

 strongly attenuated anteriorly, less posteriorly; moderately smooth, 

 si)arsely i)ilose. Prehensorial feet smooth, sparsely pilose; sternum 

 subcordiform, wider than long (5:3); coxje wider than long, unarmed; 

 tooth strong, acute; chnv large, curved. Cephalic i)late subquadran- 

 gular, sides rounded, slightly diverging posteriorly; basal plate about 

 half as long as cephalic;, twnce Jis wide as long, anterior margin scarcely 

 covered by cephalic plate. Autennte long, joints moderate, penult and 

 antepenult longer than wide. Dorsal plates moderately smooth; an 

 terior and i)Osterior prescuta moderate, median larger. Spiracles round, 



