594 IVAR TRÂGARDH 



Gnathosoma. Epistoma of tlie usual shape, lanceolate, 

 Avith finely fringed edges. The shape of the mandiblesl hâve 

 been iinable to see. 



The palpi and the hypostoma with its hairs entirely 

 agrée with those of the female. 



Hjrpostomatic hairs placed in a longitudinal row (fig. 124) 

 one behind the other, and almost equidistant. Anterior pair 

 inserted near the top of the maxillary plates, with which it 

 forms a kind of pincers (1). It is broad at the base ; as broad as 

 the maxillary plate, to ail appearances flat; tapers gradually 

 towards the very finely pointed top ; and points obliquely 

 downwards, and towards the middle. 



Second pair of hairs inserted at the base of the maxillary 

 plates, pointing perpendiculary downwards, and 5 to 6 pecti- 

 nate, with long teeth, increasing in length towards the top. 

 Third pair almost twice as long as the second, bipectinate, with 

 7 to 8 teeth on each side, which are, however, of uniform 

 length and short in comparison with the long top of the hair. 

 Fourth or posterior hair inserted on a level with the top of the 

 trunk of tritosternum, of the same shape as the third; on 

 ventral view, however, only the top of it is visible (fig. 124). 



Ventral side (fig. 116). 



Tritosternum of almost the same shape as in U. testudo 

 Tgdh (1908, pi. 3, fig. 5), with short and stout trunk, some- 

 what constricted at the base, and rounded anteriorly ; a Uttle 

 in front of the middle there are, ventrally, a pair of almost 

 perpendicular, triangular, pointed cusps ; the feathered slips 

 appears to be fused in the proximal half ; their distal thirds are 

 very narrow, without fringes. Trunk to slips as 4 : 6, 5. 



Tristosternum projecting forward almost to the top of the 



(I) It is tliis aberrant shape and position of tiie anterior pair of iiairs in tlie Vropodinae that lias 

 deceived Oudemans (1904, p. 113), as vvell as the author himself (1908, p. 44), so as to discem 

 only 3 pairs of hairs. As an excuse I must say tliat I had only succeeded in obtaining a latéral 

 View of the gnathosoma where it was impossible to discern that the so-called inner (médian) 

 cusp was in reality articulated to the latéral one, a proof that, when combined with the présence 

 of only 3 pairs of normal hypostomatic hairs, it is the modifled anterior pair^ 



