I8OPODS OF NORTH AMERICA. 655 



the body. The outer branch Is minute and is placed at the inner 

 posterior angle of the basal article. The inner branch is only visible 

 from a ventral view, and extends the length of the basal segment on 

 the under side, being attached to the upper inner angle. 



The first two segments of the thorax have the epimera posteriorly 

 cleft. 



ANALYTICAL KEY TO THE SPECIES OP THE GENUS P8EUDARMADILLO. 



a. Thorax armed with two longitudinal rows of long spines. Fifth abdominal seg- 

 ment armed with a long stout spine Pseudarmadillo giUianus Richardson 



a' '. 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 series in the median line on the sixth abdomi- 

 nal segment. Tubercle on the fifth thoracic segment largest. 



Pseudarmadillo doll/mi, new species 



V. Coxopodites of the first thoracic segment not ending in a bifurcate process. 

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

 Tubercle of the sixth abdominal segment largest. 



Pseudarmadillo carinulatus Saussure 



PSEUDARMADILLO GILLIANUS Richardson. 



Pseudarmadillo giUianus RICHARDSON, Proc. U. S. Nat. Mus., XXV, 1902, pp. 

 509-511.. 



Locality. Isla de Pinos. 



Bod}" strongly and thickly tuberculate. The thorax is armed with 

 two longitudinal rows of long stout spines, each row being halfway 

 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 abdominal 

 segment. 



The head has the anterior margin produced in three lobes, a median 

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

 broadly rounded. The posterior portion of the head bears four 

 prominent tubercles in a transverse series, the two outer ones being 

 much larger and stouter, with broad bases. The eyes are black and 

 distinct arid are situated post- laterally. The antennae reach the middle 

 of the first thoracic segment; the flagellum is two-jointed, the proximal 

 joint being 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 anguiation being rounded. 



In redescribing Pseudarmadillo carinulatus 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 describing the epimera i of 

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

 in a bifurcate process. 



