600 IVAR TRÂGARDH 



In thefemale (fig. 126) by far the greatest part of the inter- 

 pedal part is covered by the large génital shield which, 

 with its posterior third, extends backwards beyond coxae IV, 

 while the top of the anterior mucro projects beyond the base 

 of coxae I. The posterior margin is perfectly straight andforms 

 a right angle with the sides, which are paraUel in the basai 

 half, but gradually narrow. towards the front, with convex 

 sides to a médian mucro, which (fig. 128) bears a hyahn, poin- 

 ted projection, somewhat constricted at the base. 



The distal third of the shield seems to bear some punctures 

 which, however, are not in the cuticle, but are the bases of the 

 numerous hyahn, pointed hairs that are to be found at the 

 inner side of the shield (compare Michael 1889). 



A very remarkable feature of the shield is the absence of 

 hairs on it ; as a rule, there is one pair of more or less latéral 

 hairs to be found on the génital shield. Such is the case 

 at least in the Parasitinae, Laelaptinae and Zerconinae. 



This feature of the female of U. Kramerii (which it probably 

 shares with the other Uropodinae), combined with the fact 

 that the shield is not contiguous to coxae IV, contrary to what 

 is the casé in the subfamilies mentioned above, is a proof of 

 the génital shield of U. Kramerii not being homologuons 

 with that of the latter subfamilies, but only with the médian 

 part of it, the latéral parts being in reality probably the remains 

 of a lost pair ofendopodalshields that hâve completelycoales- 

 ced with the génital shield, whereas in U. Kramerii they are fu- 

 sed with the other endopodal shields, and the ventral one. 



Of the 5 pairs of hairs two are inserted close together at tho 

 top of the génital shield ; two on a level with the anterior 

 side of coxae III and IV ; the last pair on a level with the 

 posterior side of coxae IV. AU are placed near the edge of the 

 génital aperture and project beyond the margin of the 

 génital shield. 



Ventral shield coalesced with the anal shield, but traces 

 of the demarcation-line are visible in the shape of a very narrow 



