375 



Colour a dull brown above; head, legs and sternal surface ochra- 

 ceous; antennae nearly white. 



Head finely and very closely granular above , smooth below. Antennae 

 short, clavate the third segment long and cylindrical, the fifth, sixth 

 and seventh enlarged, with a distinct, external protuberance, the fifth and 

 sixth subequal in size , the seventh smaller but as large as the fourth. 



The first tergite with its upper surface depressed in front, convex 

 behind, very nearly as wide as the second and twice as wide as the 

 head which it largely covers in front , its anterior border not toothed , 

 evenly arched from the posterior angles of the keels; the posterior 

 borders of the keels directed obliquely outwards and forwards not 

 toothed, the upper surface covered with low tubercles, mixed with 

 short hairs. The keels of the rest of the somites somewhat similar 

 in form, much wider than long, not or scarcely narrowed distally, 

 with the anterior and posterior borders subparallel ; those of the second 

 and third somites directed very slightly forwards, the others becoming 

 gradually but only slightly directed backwards towards the hinder 

 end of the body, nearly horizontal; the anterior border without a 

 basal shoulder, very lightly convex, unarmed; the anterior angle 

 convex; the lateral border quadridentate or lobate; the posterior angle 

 acute and slightly produced; the posterior border lightly concave and 

 furnished with low tuberculiform teeth. The dorsal surface very convex, 

 and covered with about five rows of tubercles, the upper surface of 

 the keels tubercular like the tergites, but lees conspicuously so, fur- 

 nished laterally with grooves, which radiate to the lateral and postero- 

 lateral border; lower surface of the keels strongly and sub-radially 

 sulcate. Lateral surface of the somites thickly hairy. Caudal process 

 triangular pointed, closely granular or sub-tubercular, projecting very 

 slightly beyond the apices of the keels of the preceding somite. Anal 

 sternita bituberculate. Sterna sulcate and narrow. 



cT- With the keels more raised than in the 9, the body, thus 

 looking flatter. Legs of the 6 th somite not more widely separated 

 than the rest ; those of the 7 th a little more widely. 



The copulatory feet small, contained completely in a cavity and 

 evidently protrusible but their structure is so complicated as to be 

 practically indescribable. 



Length 16, width 4 mm. 



