I 



TSOPODS OF NORTH AMERICA. 655 



th(; body. The outer hi-iincli is ininute uiul is plucecl at the inner 

 posterior ano'le of the hasiii article. The inner lu-aneh is only \'isible 

 from a ventral view, and extends the lenoth of the l)asal seonient on 

 the under side, ])eino- attached to the uppcn- inner angle. 



The first two sejj'nients of the thorax have the ej)inHM"a posteriorly 

 eleft. 



ANALYTICAL KEY To THE SPECIf^S ()!■' THE GENCS I'SECI )A KM A 1)1 LLO. 



II. Tliorax armed with two longituiliiial rows of long spines. Fifth alxloniinal seg- 

 ment armed witli a long .stont spine I'seudar)iiailUlu giliia)m>< Richardson 



'/. Thorax not armed with two longitudinal rows of long stout spines. Fifth abdomi- 

 nal segment not armed with a long stout spine. 

 b. Coxopodites of the first thoracic segment ending in a bifurcate process. Two 

 tubercles present in longitudinal scries in the median lini' on the sixth alxlomi- 

 nal segment. Tubercle on the fifth tlioracic segment largest. 



PseiidariiiiHlillo dollfim, new species 

 J/. Coxopodites of the first thoracic segment not ending in a l)ifurcate process. 

 One tubercle only present in the median line of the sixth alxlominal segment. 

 Tubercle of the sixth abdominal segment largest. 



PseudarmadiUo (•arirniliitiis Sau.ssure" 



PSEUDARMADILLO GILLIANUS Richardson. 



PseudarmadUlo gilliiunis Richardson, Proc. U. S. Nat. Mus., XXV, 1902, pp. 

 509-511. 



Locality. — Is la de Pinos. 



Body strongly and thickly tuberculate. The thorax is armed with 

 two lonoitudinal rows of long- stout spines, each row being- halfwa}" 

 between the median line and the lateral margin. On the seventh 

 thoracic .segment, however, the spines are closer together and are 

 much longer. A long median spine is present on the fifth at)d()nrmal 

 segment. 



The head has the anterior margin produced in thi-ee IoIh's, a median 

 lobe, which is broad and rovuidly truncate, and two lateral lobes, 

 broadly i-oundecL Phe posterioi- ])ortion of the head IxMirs foui" 

 })ronnnent tubercles in a transxtu-se series, the two outei* ones being 

 nuu'h larg(n- tind stoutei-, with t)road bases. The eyes are tdack :ind 

 distinct and are situated jiost laterally. The antenna' reach the middle 

 of the lirst thoracic segnu'iit; the liagellum is two-jointed, the proximal 

 joint l)eini three or four times shorter than the distal one. 



The first thoracic .segment is covered with small tubercles, except at 

 the sides. The posterior portion of the lateral part of the segment is 

 produced backward a little, the post-lateral angulation being rounded. 



" In redescribing PseudarimidiUn car'niulalus Saussure, Budde-Lund says there is a 

 single median tubercle on the 4-5-6 abdominal segments, all large. He does not 

 mention the presence of one on the third abdominal segment, although Saussure says 

 there is one on each segment following the first two. In de.scril)ing the epimera of 

 the first thoracic segment Budde-Lund does not say that they terininate on each side 

 in a bifurcate process. 



