596 IV AR TRAGARDH 



Anal aperture close to the posterior margin (fig. 117). It 

 is anteriorly embraced by a narrow plate of even width through- 

 out, which bears a pair of small but stout bristles near 

 the middle. This plate I am inclined to homologize with the 

 anal shield found in other gênera, in which it is more deve- 

 loped. If this interprétation is correct, the semiliinar shield 

 is composed solely of the ventral shield, not a ventral 

 shield fusedwith an anal one. Its position so remarkably far 

 back is due, in thefirst instance, to the coxae being more widely 

 separated than in the adults, in the second instance to the 

 great development of the sternal and metapodal shields. 



Anal aperture triangular in outline, anteriorly surrounded 

 by a pair of very narrow plates, posteriorly by one larger 

 one which projects as a thin, horizontal, triangular, and pos- 

 teriorly rounded, detached plate. The 3 usual circumanal 

 hairs haK as long as the width of the aperture. 



Stigmata situated on a level with the posterior margin of 

 coxae II and in the bottom of f oveolae pédales III, at the 

 end of the peritremata, which run straight outwards and 

 forwards, turn sharply forwards, then twice inwards and once 

 outwards, and extend forward in an even curve slightly beyond 

 the propleuric ridges. 



Near the margin of the body, ventrally, there is a row of 

 small radiating hairs, placed at regular intervais. 



The legs are shaped as in the adults. 



Adult. 



Maie : Length : 700 u.. width : 575 u.. 



Female : Length : 730 y. width: 595 u. 



The sexes agrée with regard to the texture and number 

 and position of hairs of the dorsal, marginal, metapodal 

 and ventral shields, as well as the shape of the legs. 



They differ, besides naturally, with regard to the génital 

 and sternal shields, in the gênerai shape of the body, and 

 in the shape of the hypostomatic hairs. 



