750 ME. F. O. PIOKAKD OAMBEIDGB ON [June 16, 



Genus Fufius, E. Simon, 1888. 



Type. F. atramentarius, E. Sim. ( ? ), Ann. Soc. Ent. Fr. 1888, 

 p. 213. 17 mm. long. Bab. Guatemala. 



rupiua ATOiooMis, E. Sim. (Plate XXXV. figs. 4, 6, 8, IG.) 



S 2 • -S^"^' Santarem, Lower Amazons. c? 12-5 mm. long. ; 

 $ 17 mm. long. In coll. Brit. Mus. Nat. Hist, cf new. 



J . — Colour. Carapace and basal joint of mandibles black, clothed 

 with fine golden hair. Sternum, coxes of pedipalp and of first 

 pair of legs deep pitch-brown. Femora black, apex tinged with 

 pinlc ; patella pitch-brown ; tibiae of legs black, of pedipalp pitch- 

 brown ; protarsi and tarsi slightly paler ; 2nd, 3rcl, and 4th pair 

 of legs pitch-brown, paler towards extremity. Tibiae and protarsi 

 each with two dark annulations, one at the apex, the other at or 

 towards the base. Coxsb and trochanter of pedipalpi and all four 

 pairs of legs clothed above with golden hairs. Abdomen pitch- 

 brown, with a central, dorsal band of fine golden hairs, more 

 scattered laterally towards apex. Venti-al area brown ; spinners 

 paler, second and third joints suffused with dark brown. 



Carapace longer than broad, finely granulate ; cephalic area 

 occupying over half the length of carapace; central fovea deep, 

 recurved. Cephalic and thoracic impressions well marked. 



Ocular tumulus low, height double its breadth. Central anterior 

 eyes large, circular, half a diameter from margin of clypeus, half a 

 diameter apart, almost in contact with anterior laterals ; less than 

 a quarter diameter from posterior centrals. Anterior laterals 

 reniform elliptic ; their axis rather less than diameter of anterior 

 centrals. Posterior laterals ellipsoid, their axis equal to half the 

 axis of anterior laterals and one quarter their axis from them. 

 Posterior centrals very small, their axis equal to one third the 

 diameter of the anterior centrals, ellipsoidal, less than half an axis 

 from lateral posteriors, almost two diameters of anterior centrals 

 apart. 



Sternum longer than broad, finely granulate and sparsely 

 tuberculate, with a longitudinal smooth central channel; its 

 width one third less than its length ; posterior margin fringed 

 with stiff separate dark hairs. Sigilla well marlced, especially 1st, 

 2nd, 3rd, and 4th pairs ; 2nd and 3rd marginal. 



Mandibles without rastellum. Inner margin of fang-groove 

 armed with a single row of eight conical teeth, its floor studded 

 towards the base with minute cusps ; outer margin fringed with 

 rufous hairs, inner with a few fine hairs. 



Labium longer than broad, attenuate towards apex, with two or 

 three minute cusps. Coxa of pedipalp twice as long as broad, 

 finely granulate and sparsely tuberculate, studded with numerous 

 minute cusps at base, clustered towards inner angle. Inner 

 apical angle slightly produced and studded with minute cusps. 

 Inner margin thickly fringed with rufous hairs. Tibia of pedi- 

 palp incrassate, fringed with long hairs ; tarsus short, dilate, 



