BRACHYGLUTINI 157 



VIII 



longiceps (Reitter). 1885. Chile. 



IX 



praeclara (Reitter) . 1885. Chile. 



X 



bituberculata (Reitter). 1885. Chile. 



XI 



monstrata (Reitter) . 1885. Chile. 



valdiviensis (Blanchard). 1852. Chile. (Pselaphus) {Aplodea, Reit- 

 ter) {Tyropsis, Raffray). See Raffray, 1904. {anas Reitter, 1885) 

 (nasuta Reitter, 1885; nasina Reitter, 1893) 



XII 



puncticeps (Reitter). 1883. Chile. 



XIII 



excisa (Schaufuss). 1879. Cuba. 

 validicornis (Reitter). 1885. Chile. 



RAXYBIS (Raffray, 1908) 



This is an Argentine genus closely related to Braxyda and Bryaxina, 

 differentiated from them by the key characters. There is also a slight but 

 constant difference. Raxybis males have the second segment of the anterior 

 tarsi thicker than the third, but not dilated nor flattened, and the ventral 

 surface is clothed with long, dense setae; this tarsal condition is also found in 

 the females. On the other hand the males of Braxyda, Bryaxina, Xybaris, 

 Achillia have the second tarsomere dilated, flattened and with a pad of setae 

 beneath. 



Length 2.4 mm nodosa 



Length less than two millimeters 2 



2, Front flat, obtusely angulated; epistome uncarinated 



frontalis Female 



Front medianly truncate, fasciculated and with a triangular tubercle ; 



epistome strongly carinated frontalis Male 



frontalis Raffray. 1908a. Buenos Aires, Argentina. (Male and female 



known.) 

 nodosa Raffray. 1908a. Buenos Aires, Argentina. Genotype. (Male 



known only.) 



