14 ARKIV FÖR ZOOLOGI. BAND 7. N:0 12. 



the male, where there are only 3 pairs of hairs on the sternal 

 shield, the genital portion of the geniti-ventral shield has 2 

 pairs of hairs. And as a rule, no exception to which has yet 

 been found, the sternal shield has 3 pairs, the metasternal and 

 the genital shields one each. which persist even when all the 

 shields are fused, as for instance in the males of Pergamasus 

 [comp. Trägårdh 7, textfig. 64 p. 410 & textfig. 74 p. 413]. 



The genital shield is fused with the ventral shield; it 

 projects forward to the middle of coxse III and is anteriorly 

 truncated, with broadly rounded antero-lateral angles; the 

 greatest width is behind coxse IV, whence the ventral por- 

 tion gradually narrows with a concave margin tow^ards the 

 middle of the metapodial shields, where it attains a width of 

 ^3 of the greatest width; further backwards it widens gra- 

 dually to ^li of the greatest width. 



The anterior portion — between the coxse — has a net-like 

 texture, but further backwards the meshes become narrow 

 and parallel to the longitudinal axis. 



Two pairs of hairs, one pair, the genital one, laterally, on 

 a level with the middle of coxae IV; the other pair, twice 

 as long as th5 first one, is inserted in the posterior Vs near 

 the lateral margin. Below the genital shield we notice a 

 long narrow median fissure, which is so conspicuous through 

 the thin shield that at a cursory glance it looks as if the 

 shield itself were split in two halves by it; on both sides of 

 this fissure there is a round pouch, densely folded in to 

 numerous, radiating folds (fig. 11). 



Gnathosoma. 



The mandibles (fig. 12). The »flagellum» is a little broader 

 at the base than in the male; lower jaw a little less curved 

 and the lanceolate appendage comparatively longer; the 

 upper jaw has a dorsal tooth directed forward, as in the 

 male, but no ventral teeth and is thickened at the top with 

 irregularly wavy^ ventral edge. 



The palpi are of the same shape as in the male. 



The hypostoma (fig. 13). 



The 4 hypostomatic hairs are placed, one behind the other, 

 in a longitudinal row curved outwards; the anterior one is 



^ I have not been able to see the exact configuration of the edge 

 there are, however, no distinct teeth, as in the male. 



