140 REVISTA CHILENA DE HISTORIA NATURAL 



ñ NEW 50UTH-^MERI C/tN 50LFUGID 



BY 



Dr. nELLO-LElTAO 



Are the Solijugae very uncommon arachnids in 

 South-America, Avhere are represented only by the fami- 

 ly Solprujidae. Kraepelin reports eleven species of Ve- 

 nezuela (Saronomus capensis, Ammotreclia hübneri and 

 Ammotrecha genicuJata), Bolivia (Pseicdocleobis aliicola), 

 Perú {Mutmnucia variegata), Equator (Ammotrecha ger- 

 vaisi), Chile {Mummucia variegata and Pseudocleobis mor- 

 sicans), Colombia [Ammotrecha martha), Argentina [Pro- 

 cleohis burmeisteri, Pseudocleobis andinus and Pseudocleo- 

 bis 2yatagonica), and Brasil (the venezuelan species Ammo- 

 trecha geniculaia). All south-american species but one are 

 of the siib-family Daesiinae, of the genera Procleobis, Pseu- 

 docleobis, Ammotrecha and Mummuncia. At 1916 publis- 

 hes Chamberliu a new species of Solpugid (sub-faraily 

 Daesiinae) of a fifth genus of South-America, Chinchippus 

 peruvianus, collected in Chincha islands (Perú). I have 

 received from Porto-Alegre (Rio Grande do Sul), collec- 

 ted by Dr. Rudolf Gliesch, a very fine and interesting 

 Solpugid, also of the sub-family Daesiinae, but of a neAV 

 genus. 



GAUCHA, gen. nov. 



Anterior raargin of carapace evidently bowed for-' 

 ward and with tAVo little semicircular eminences at late- 

 ral corners. Margin of eye tubercle Avith several short 

 setae. Mesal surface of chelicerae with strongly develop- 

 ped stridulating ridges which extend below the middle. 

 Thirdtoothof dorsal ñngerof chelicerae (Fig. 24, «) greatly 

 reduced, the ñfth tooth as large as or only a little shorter 

 than the fourth. Lateral plates of the rostrura shorter 



