78 H. J. HANSEN. 



rather numerous aud short. The third scutum with the pro- 

 cesses considerably broader than long, the distance between 

 them about equal to their length, aud the seta? nearly as 

 on the preceding scutum. 



Legs. — The last pair (fig. 5 c) are proportionately rather 

 long. The tibia with two, the metatarsus with three pro- 

 truding seta3 in the anterior dorsal row, none of them quite 

 as long as the depth of the tarsus. The tarsus is rather 

 long, about five times longer than deep, with four protruding 

 dorsal seta? in the anterior row, and the longest seta about as 

 long as the depth of the joint. The anterior claw (fig. 5 d) is 

 elongate, moderately robust and rather curved; the posterior 

 claw is considerably more slender, more curved, and nearly 

 one third shorter than the other; the front seta long and 

 rather thick. The first pair are exceedingly small rounded 

 knobs with some short seta?. 



Cerci (fig. 5e). — Robust and rather long, somewhat longer 

 than the last pair of legs, slightly more than four times 

 longer than deep, and about as broad as deep. They are set 

 with many setfe, of which about seven on the lower side are 

 strongly protruding, moderately long, yet neai-ly two and a 

 half times shorter than the depth of the cerci ; all other seta? 

 are considerably shorter and depressed. The terminal area 

 is scarcely half as long as the depth of the cerci, and looks 

 downwards ; the striped surface above it is very short, with 

 six or seven thickened lines. (Tlie apical seta? are Avanting 

 in my specimens.) 



Length. — 2*8 mm. 



Locality. — Austin, in Texas (collected by ProF. W. M. 

 Wheeler). 



Remarks. — The species is allied to S. Isabella^ Gi'assi, 

 but easily separated by the cerci, especially by the complete 

 want of longer and protruding setio on the ujiper two thirds 

 of their outer surface. 



