11-4 KECORPS OF THE AUSTRALIAN .MUSEUM. 



joint witli fleecy hairs and fuui* sensory cones. Micrometrical 

 measurements of joints : 1st joint 0.416 m/m; 2nd, 0.640 ni/ni ; 

 3rd, 0.480 ni/m; 4tli, 0.480 na/m ; 5th, 0.480 m/m; 6th, 

 0.608 m/m ; 7th and 8th, 0.032 m/m ; total length, 3.136 

 m/m. Diameter of 2nd joint 0.384 m/m ; of 6th, 0.480 m/m. 



First segment almost leathery. Sides reaching as far down 

 as the second segment, narrowed and angular with blunt apex ; 

 the anterior margin excised and margined below the eyes, 

 marginal sulcus well marked. The five following segments 

 Avith ventral surface depressed and roughly striate. Anterior 

 part of prozonite smooth or with hardl}^ distinct concentric 

 striae. On a few anterior segments, the posterior part of the 

 prozonite shows transverse striae which, on a level with and 

 below the pores, are bent backwards and encroach on the 

 metazonite. Further back (PI. xvi., fig. 30) the transvei-se 

 dorsal stria? disappear, the prozonite being widely strewn with 

 delicate horse-shoe-shaped punctures, always larger along the 

 suture ; traces of the strife remain below the pores and venter ; 

 complete longitudinal striae are only seen low down above the 

 legs. Metazonite densely covered with minute longitudinal 

 strise, less distinct backwards. Suture indistinct between the 

 pores, impressed and more or less clearly sulcate in the sides 

 and venter. Pores start on the sixth segment; they are located 

 high in the sides and on the prozonite; a longitudinal sulcus is 

 seen on the metazonite in connection with the pore. 



Last segment leathery, its posterior margin angularly pi'o- 

 duced, the angle being wide open and not concealing the upper 

 angles of the valves. The latter are nioderately prominent, 

 rather globular at the base, slightly impressed ; margins not 

 thickened and without trace of marginal sulcus. Anal sternite 

 wide and very short, with almost straight transverse posterior 

 mai'gin. Sterna of the other segments striate, more strongly 

 in the middle. Stigmatn small. 



Legs shoi'tish, with but one distal bristle below on the five 

 proximal joints. 



Male: — Jjegs of the tii-st and second pair swollen. Coxa? of 

 the 3rd and 4th j)air witli a strongly developed, distally 

 rounded, spatulate (3rd pair, PI. xxi., fig. 31) or bead-like, 

 (4th pair, Pi. xvi., tig. 32) process ; 2nd and 3i'(l joint of the 



