TLLLGREN, ARANE^ FR. THE GRAN CHACO. 15 



thrice their radius apart. Anterior laterals ellipsoidat, their 

 axes nearly twice the diameter of anterior centrals and remo- 

 ved from them by an interval as long as the diameter of the 

 central ones. Posterior centrals smallest, ellipsoidal, nearly 

 their axes from anterior centrals and almost in contact with 

 posterior laterals. Posterior laterals ellipsoidal, their axes 

 less than that of anterior laterals, about a third their axes 

 removed from the latter. 



Cheliceres very small, påle yellow beneath and dark gree- 

 nish brown above. The margins of the fang-groove fringed 

 with bright red hairs. 



Labium testaceous, a little broader than long, withoiit 

 cusps at the apex. 



Coxa of jjedijxilp on the anterior side with a »lyra» of 

 8 a little curved, claviform hairs arranged in a straight row 

 and increasing in length. Any corresponding bristles on the 

 chelicer are not visible. 



Pedipalp. Tibia with long and strong spines beneath, 

 tarsus very short, bulb short piriform, its apex prolonged into 

 a very long, simple, slightly curved spine. (Pl. 1, fig. 3c). 



Sternum broad oval, testaceous with long upturned black 

 hairs. 



Legs 4. 1. 2. 3. Except the coxse and the trochanteres 

 the legs are very dark greenish brown. All parts more or 

 less clothed with long black hairs. Femora above with seve- 

 ral long spines or spiniform hairs. Tibia I with 1. 1. 2. 

 spines beneath; tibia II with two apical ones and four irre- 

 gular arranged ones beneath. Meta tarsus I with several spines 

 beneath and with a very thin scopula towards the apex 

 Tarsus I and II slightly curved and with a thin and long 

 scopula, not divided by setse. Tarsal claws 3; superior pair 

 armed beneath with a double series of o — 6 denticles. 



Ahdomen elongate-oval, about as long as the cephalo- 

 thorax. Colour is dark brown with irregular arranged small 

 yellowish spöts, especially towards the sides. The venter is 

 paler with larger confluent spöts. The abdomen densely 

 clothed with very long blackish hairs. 



Mamillce four. Posterior pair about as long as the ab- 

 iomen. Lengt of joints: 2,8 — 3,2 — 3,ö mm. 



