242 Mr. R. I. Pocock on 



Hormurus Icevtceps, sp. n. (PI. XII. figs. 1 and 1 a.) 



Colour of upper surface of trunk varying from ochraceous 

 to piceous, under surface always much paler, testaceous or 

 ochraceous ; palpi and legs reddish brown to almost black 

 above, paler beneath ; vesicle always much paler than the 

 rest of the tail, usually streaked beneath with darker bands of 

 colour ; aculeus dark brown. 



Cephalothorax closely and finely punctured throughout, 

 almost wholly smooth, sometimes very slightly and finely 

 granular in its postero-lateral portions, marked here and there, 

 especially on its margin, with setiferous pores ; marked 

 throughout its extent by a median longitudinal sulcus ; its 

 anterior margin somewhat shallowly excised ; the area around 

 the median eyes flat or slightly depressed; the median eyes 

 of relatively small size and not elevated on to a tubercle. 



Tergites very finely and closely punctured, smooth or 

 feebly granular at the sides, the punctures very numerous and 

 fine on the hinder margin ; the third, fourth, fifth, and sixth 

 marked with two conspicuous depressions, which define a 

 more or less pyriform area ; these depressions only faintly 

 developed on the first, second, and seventh tergites. 



Sternites marked with two abbreviated subparallel depres- 

 sions, very faintly and closely punctured. 



Tail. — Lower surface thickly and closely punctured, the 

 first four segments not keeled below, the lines of the keels 

 being marked by serially arranged setiferous pores, the fifth 

 segment with its inferior keels marked by three rows of 

 unevenly spaced granules ; upper surface of the tail without 

 keels ; the anterior segments very slightly granular at the 

 sides ; the posterior segments smooth throughout ; the median 

 sulcus perfectly smooth ; vesicle pyriform, flatter and lightly 

 sulcate above, smooth and setose beneath ; aculeus short and 

 abruptly curved. 



Palp. — Humerus with upper surface thickly and finely 

 punctured, and either, at all events in its proximal half, 

 thickly and finely granular, or almost wholly smooth, its 

 anterior surface finely and sparsely granular and bounded 

 above and below by a series of stronger sharp tubercles ; 

 its inferior surface finely and closely punctured, smooth ; 

 the posterior surface somewhat coarsely granular above. 

 Brachium with upper surface smooth and punctured, pos- 

 terior surface feebly granular and defined above and below 

 by a subtuberculate ridge ; inferior surface smooth and 

 punctured ; anterior surface smooth or slightly granular 

 proximally, defined below by a series of conspicuous denticles 



