120 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND. 



view, nearly six times the length of the prone turn. Scutelluni 

 very prominent, about two-thirds the length of scutum. 

 Scutum distinctly ridged ; pronotum faintly striated ; scutellum 

 smooth. In the middle of the scutellum on either side of the 

 mid-Hne, the chitinous plate has a pair of small circular holes. 

 The ventral side of thorax hght brown, shiny. From the 

 postero-ventral region of the pronotum a thin plate, pale brown 

 in colour and rather transparent, is given off backwardly, 

 reaching so far back as to overlap the tegulae ventrally. Pro- 

 bably the anterior .spiracle Ues beneath this plate ; a similar 

 structure is developed along the whole of the ventral portion 

 of the mesonotum, and overlaps a portion of the last coxa ; 

 it is Hght broAvn in colour, much stronger than the similar 

 extension from the pronotum, and appears to be hollow. The 

 second spiracle is probably hidden beneath this structure. 

 From the metathorax a similar overlapping structure is 

 developed, but it is much smaller. Immediately behind it lies 

 the third spiracle : just above it is a small cluster of silvery 

 hairs. Pronotum with a row of 18 short (9 and 9), scutum 

 with 56 (28-28) rather long bristles ; scutellum with 22 (11-11) 

 moderately long bristles on anterior half, a pair on the border, 

 three-quarters the distance to distal end, and a j)air of rather 

 long scutellar apicals. Tegulae each with three bristles. 



Legs brown. — First leg : Coxa largest, powerful : breadth 

 half the length ; thirteen bristles externally, and two rows of 

 small bristles on posterior (inner) margin. Trochanter half 

 the length of coxa ; double -jointed ; hairless. Femur rather 

 .short, twice the length of coxa and thick-set ; with four rows of 

 moderately long bristles. Tibia one and a half times the length 

 of coxa, sUghtly broader distally than proximally ; spur as 

 long as that of second leg, but considerably weaker, with five 

 rows of moderately long bristles. Tarsus nearly as long as 

 iemur, the five joints very hairy ; claws not markedly large. — 

 Second leg : Coxa longer but less stout than in first leg ; 

 pro\-ided with six longitudinal rows of bristles. Trochanter 

 long, double- jointed, hairless. Femur as long as first femur, 

 but rather weaker ; with six longitudinal rows of bristles. 

 Tibia long (-56 mm.), thinner than femur ; with five rows of 

 bristles, the enlarged tibial spur very faintly serrated at its 

 inner distal end. First tarsal joint much elongated ; claws 

 small. — Third leg : Coxa exceedingly stout, a httle longer than 

 })road, with a faint reticulation ; six rows of short bristles. 



