Mr. A. G. Butler on the Genus Phrynus. 121 



prominent, smaller; ejes yellow. Abdomen dull pitchy, 

 sparsely granulated at the sides, and with regular series of 

 minute granules in front of each segment ; covered sparsely 

 with short bristles ,• four longitudinal ochraceous parallel sulcse 

 on each side. Legs dull pitchy, becoming castaneous towards 

 the tarsi, which are distinctly castaneous, ochraceous at the 

 joints ; the femora coarsely granulated and slightly pilose ; 

 tibiffi and tarsi covered with short hairs ; palpi dull black, 

 ochraceous at the joints, very long and slender, sparsely gra- 

 nulated ; the coxje pitchy, their opposing edges with nume- 

 rous short tawny bristles ; mandibular process pronounced ; 

 trochanter bearing four well-marked unequal spines on its 

 antero-inferior margin (one of them considerably longer than 

 the others), and a strong cylindrical process with ochraceous 

 clavate termination on its postero-inierior margin ; femoral 

 joint cylindrical, its interior surface flattened and depressed, 

 with nine well-marked spines on its basal half, most thickly 

 grouped and longest at its basal extremity ; tibial joint similar 

 in general form to the femoral, but not flattened internally, 

 with eleven Avell-marked unequal spines, the first three emit- 

 ted above the middle, increasing in size, the first being about 

 a line in length, the third about two lines; the three next, on 

 the supero-interior margin, are the longest, being about 4 lines 

 ill length ; nearly opposite to the first of these, but emitted 

 from the inferior margin, is a fourth long spine, about 2^ lines 

 in length ; four short curved spines on either side of the distal 

 end complete the series : last joint elongate, cylindrical, 

 coarsely granulated, quadrispinose at base, the anterior spines 

 being long and curved ; terminal claw long, curved, pilose 

 iutemally. Mandibles pitchy, clothed internally with long 

 tawny hairs, long, slightly roughened anteriorly above ; upper 

 mandible with four well-developed conical teeth, the three 

 external ones slightly shorter than the other, equal in length, 

 united at base ; lower mandible with five teeth, the first and 

 the last being the longest, the first unequally bifid at apex 

 (as usual in American species). 



Ventral sm-face pitchy ; the coxae and trochanters of legs 

 of normal type, but the coxa of second pair of legs with un- 

 usually well-developed anterior process ; abdomen rather less 

 granulated than above ; ligular process tawny, rather shorter 

 than usual, terminating in two short bristles. 



Length of body 14 lines, of mandibles extracted and opened 

 3 lines, of palpi 56 lines ; first pair of legs about 88, second 

 41, third 42, fourth 43. 



Hab. Upper Amazons {Bates). Two dried examples, B.M. 



A fine species, with remarkably long and slender palpi. 



