BIHANG TILL K. SV. VET-.AKAD. HANDL. BAND 28. AFD. IV. N:0 1. 67 



beneath at the base, where there are two very short biit 

 strong ones. On the second femur there are on the back 

 some very long si)iniformed black bristles. On the two last 

 pair of legs there are several short spines. 



Ahdomen is oval, entirely grayish brown, densely clothed 

 with short whitish hairs and with scattered very long nptiir- 

 ned ones. The rima ventralis sitnated near the mamillse. 



Vulva conf. Pl. VII, fig. 3. 



Measurements : 



total length 13 mm. 



leugth of the ceplialothorax 4,2 » 



breadth ;> » > 3,4 » 



length ■■' > abdomeii 9 » 



breadth :> > > 0,5 » 



length » » 1st leg 11,4 » 



» ;> :> 2d :> 10,3 » 



;> » » 3d » 8,6 » 



» » :> 4th » 10,2 » 



Mezenia Simon. 



Simon, Hist. Nat. d. Araignées T. 2, fase. 1. 1897 p. 101. 



This genus, which is nearly related to Arachosia, is only 

 represented by one single species, M. dorsalis Sim. from Chile. 

 This species is very scantily and insufficiently described (1. 

 c. p. 101 in a note) and it is only with hesitation that I 

 refer the specimens in the collection of Mr. Dusen to that 

 species. 



M. dorsalis SiM. 



Female. — Cephalotliorax oval, more long than broad, 

 tapering towards the front. It is very convex, in the middle 

 it has a very long and fine black central-furrow. The side- 

 furrows are perfectly efFaced. The colour is yellow-brown, 

 on the pars cephalica there is a broad longitudinal blackish 

 shade. The region of the eyes is black. Clypeus is not 

 fully as high as the diameter of the anterior middle-eyes. 

 The whole cephalothorax densely clothed by adpressed grayish 

 hairs and has especially in the region of eyes scattered long 

 bristles. 



