I. TRÄGÅRDH, DISCOMEGISTUS NOV. GEN. 7 



rows considerably towards the middle; the anterior margin 

 is convex, with rounded antero-lateral angles; the posterior 

 margin is truncated, with sharp angles and a sHght median 

 excavation. There are 3 pairs of hairs, one a little behind 

 and sideways from the base of the genital shield, the other 

 more laterally and a little fiirther backwards and the last 

 pair laterally, in the posterior third and projecting as far as 

 the hind margin. 



The shield has a net-like texture, but the meslies are long 

 and narrow and parallel with the longitudinal axis of the 

 shield. 



The anal shield (for the description of the anal and 

 metapodial shields I ref er to fig. 10; the female agrees in these 

 respects entirely with the male) is very large, twice as wide 

 as it is long and wider than the ventri-metasternal shield is 

 long; it is separated from that shield by a narrow strip of 

 soft cuticle; the anterior margin is parallel with the posterior 

 margin of the ventri-metasternal shield, the posterior edge 

 convex and the postero-lateral angles well rounded; along 

 the former there is a band of radially striated cuticle which 

 widens towards the middle; the rest of the surface is reti- 

 culated. There are 3 long straight hairs, two in the antero- 

 lateral angles, the 3rd medially, at the posterior margin. 



The anal aperture is large, almost half as long as the 

 shield, and long oval. 



The metapodial shields are very large, broad oval and 

 occupy nearly the whole space between the ventral shield 

 and the margin of the body. Their surface is exceedingly 

 thin and translucent, but the edge is thickened to a strong 

 ridge which runs all round the shield on the external side, 

 from coxse IV to the demarcation line between the ventri- 

 metasternal and the anal shield. The extremely thin cuticle 

 of the shields rises, like the wall of a blotch, above the level 

 of the belly and the lateral portion of it overlaps the meta- 

 podial ridge with a thin, tongue-shaped lappet. 



There are only two pairs of small, inconspicuous margi- 

 nal hairs, one close behind coxse IV, the other at the median 

 edge, a little in front of the middle. 



Below the cuticle we notice numerous bundles of muscular 

 fibres, which radiate from larger bundles, emanating from a 

 point near the anterior margin and closely behind coxse IV. 



