150 



LOUIS FAGE 



Mâle. — Céphalothorax long, 0,5 mm. ; abdomen long. : 

 0,6 mm. ; total length : 1,1 mm. 



Céphalothorax palpi and legs yellow ; abdomen dirty white, 

 with a few long darker hairs at the dorsum. 



Cephaloth. hardly longer than broad ; in front about half 

 as wide as in the middle ; posteriorly broadly rounded. Seen 

 from the side the dorsum is highly 

 arched, and the highest point is a 

 little behind the eyes; the médian fis- 

 sure absent ; clypeus as high as tlie 

 length of tlie niaiulibles. 



Eyes in pairs, forming two rows, 

 the anterior row a little recurved ; the 

 two médian eyes contiguous and not 

 much more than their diameter separa- 

 ted from the also contiguous L. E. 



Mandihles diverging, rather porrec- 

 ted and weak ; obliquely truncate on 

 the inner side near apex. Claw in the 

 maie long and thin. 



Maxillœ about two-thirds longer 

 than broad, curvatedly inclined, partly 

 embracing the triangular labium. 



Sternum triangular; narrower in the 

 maie than in the female. 

 Legs very long and slender, sparsely provided with short 

 pubescence. Three tarsal claws. The patellar joint of the 

 maie palpi shorter than the tibial joint, and both together 

 longer than the very slender and slightly bent fémur. The 

 tarsal joint emarginate at the underside, near the base, shorter 

 than the pyriform prominent bulbus, which terminâtes in a 

 curved projection. 



Abdomen hardly longer than broad, globose, projecting a 

 little over the spinnerets, of which the inferior pair seems to 

 be a little thicker than the superior. 



FlO. U. Usophila gracilis Marx 

 O"* et Ç. d'après Marx. 



