180 Illinois State Laboratory of Natural History. 



Inner ramus of the right iifth foot short, about the same 

 breadth throughout, almost reaching the middle of the first 

 segment of the outer ramus ; armed at the tip with a number 

 of strong blunt spines. 



Second basal segment of the left fifth leg subquadrate, the 

 inner margin distinctly tuberculate, the outer apical jingle 

 with a delicate hair. First segment of the outer ramus sub- 

 quadrate, about a fourth longer than broad ; provided at the 

 inner margin with a narrow hyaline lamina, produced at the 

 inner apical angle into a delicately hairy cushion-like process. 

 The second segment is narrow, about half as broad as the 

 preceding ; delicately hairy within, and produced at the inner 

 distal angle into a cushion-like process densely covered with 

 minute hairs. On the posterior side of this segment are two 

 processes : one a long straight spine, more than half as long 

 as the segment itself and armed at the inner margin with 

 very strong hairs or spinules, largest at the base and decreas- 

 ing in size toward the tip ; the other a short, thick, blunt 

 process, perfectly smooth, about a third the length of the 

 spine. 



Inner ramus of left fifth leg very long and narrow, arcuate 

 (the concavity toward the outer ramus), about one eighth as 

 broad as long, reaching beyond the end of the first and almost 

 to the middle of the second segment of the outer ramus. It 

 is broadest at the base and at the apex, armed at the tip with 

 a number of strong blunt spinules, and tuberculate its entire 

 length. 



Second basal segment of the fifth pair of feet in the female 

 (PI. XXXIV., Fig. 3) trapezoidal, with the longest base form- 

 ing the inner margin. From the outer margin springs the 

 usual delicate hair. The first segment of the outer ramus is 

 subquadrate, not quite twice as long as broad. Second seg- 

 ment subcorneal, almost* straight, a little shorter than the 

 preceding segment ; the third segment wanting, represented 

 by two sharp slender spines, the outer more than twice as 

 long as the inner. 



Inner ramus of fifth foot of female, one-segmented, longer 

 than the first segment of the outer ramus and of uniform 



