[From F.ntomoJiKjico Anu rirniin, II, 1SS7, ]i|». l.^-lti. | 



NEW GENUS AND SPECIES OF POLYDESMlDiE. 



Hv rrr\i!r,i;s ir. iw)i.i,>f.\v. 



In oxsiiiiiiiin^ the inatnial of this family in thr imisriiiii of tlu' In- 

 diana I'liiviMsity and niy<»wn collection, I have foiiii<l the following;- new 

 species. The ty[u's are (h'jiosited in the nuiseuni of The Indiana Uni- 

 versity. 



(ienns I. — INjlvdksaius Latreille. 



1. Polydesinus nitidiis hj>. imv . 



Dark shininj? brown, beneath li,uht«'r, lateral jdates reddish-brown; 

 antenna' daik. Mo<leiately slender and de|)ressed, acuminate ante- 

 riorly and ]>osteriorly. but not s(> nnu;h as in canmh nsin. Antenna* 

 exceeding' tin' length of body, snbclavate. First dorsal plate wide, 

 aii.ulesa little inodnced. sides one-tnothed: posterior border with a row 

 of tine. <iliate<l si)ines; anterior row of scales barely distinj;uishable, 

 middle low of four lar«>e scales, ])osterior of three, small ones iu the 

 middl' and two lar'ier ones at both ends, anterior side scale snndl, 

 ofln'r one (repvij;natorial pore scale) larji'c elonf^ate. Other (h»rsal jdates 

 with t!ie scales distinct, anterior anj;les roninled. ]>osterior produced, 

 lateral marjiius .'5-i toothed, posterior bonb'r of anterioi' segments cil- 

 iated: ant«'rioi' l»or(ler divided by the median dorsal line into two larj^e 

 scales; middle row consists of four scales, posterior of six, outer larger, 

 anleri<)r si<le scale laij^e and swollen, repu«;iiatoiial ]>ore scale larj^e 

 and eIou<;ate; scales of last s«'gnients more elonjiate, marked with tine 

 iri-e,i;ular lin<'s, the last row proiectin.u' behind. Feet long', stronjily 

 (-rassate in the male and the femur swollen alcove, in the femah' some- 

 what crassate. i cojmlation f<»ot larue, slender and curved; apex be- 

 neath witii several l)unches of tlat, spiny hairs, l)elow this are foir 

 tubercles, the two lowest ones ou the inner side la)\nest, ehuiyate, tlie 

 last one point inj;' toward the coxa'. pilij;erous pul villus lar^^'e, above 

 which is a nu)derately Ion;;- taperinu' branch and l»elow a tubercle, 

 l.en.uth of b(»dy l.V-l.S"""; width, L*.8-;J.r>""". 



lldhitot. — Pensacola, I'la. 



1 have examined 15 si»ecimens of this species, collected by myself iu 

 the vicinity of swamps. This species is related ta ctniadnifiis, hnt 'n^ 

 easily distinj;uished by the long slender tubercles of the male genitalia. 



G7 



