64 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND. 



bristles. Lateral verticals very small. Three rows of black 

 bristles behind eyes. Hairs, behind these, short and golden. 

 Gense provided with very long silvery hairs. 



Thorax grey, faintly tinged with gold, especially around 

 sides ; frequently the thorax is quite grey. Three fairly 

 regular longitudinal stripes present, of which the middle one 

 alone extends on to the scutellum. Anterior spiracles dark 

 chocolate in colour, covered "with short silvery hairs. Ventral 

 side of thorax grejdsh, provided mth short black bristles ; 

 median ventral plates pink. Three humeral bristles present, 

 of which the lowest two are rather large, and much larger 

 than the first. Of the acrostichals, only the prescutellar pair 

 is present. Anterior dorsocentrals rather weak. First posterior 

 dorsocentral very weak ; second a little larger, third much 

 larger, fourth extending well beyond scutellum. First intra- 

 alar very small, second very large. Apical scutellar bristles 

 present. 



Legs. — Coxse dark grey, well armed with bristles. Femora 

 black and grey, often faintly tinged with gold. First femur 

 slightly hairy on its proximal ventral side ; second femur 

 more hairy, median ventral bristles differentiated into a 

 " comb" ; third femur hairy on median ventral side. Pulvilli 

 dark brown, fringed with very minute silvery hairs. 



Abdomen greyish gold in appearance, with the ordinary 

 black markings. Upper surface covered with short reclinate 

 bristles ; ventral side hairy. 



Hypopygium shining black, hairy, and not visible from 

 above. Forceps shiny black, sculptured, dark brown on 

 inner surface. Accessory plates brown, hairy, but not markedly 

 so. Claspers heavily chitinised, shiny black. 



The first joint of the penis is dark brown ; the fecond 

 forms a highly chitinised structure almost uniformly black. 

 Viewed ventrally (Figs. 1, 2) it is triangular in shape, the apex 

 of triangle pointing backwards. The organ is provided with 

 two pairs of downwardly, outwardly, and ventrally projecting 

 pale-brown chitinous processes, and with a pair of very heavily 

 chitinised triangular, somewhat rounded masses, highly 

 serrated on their anterior surface, giving the whole organ a 

 remarkable appearance in lateral view (Fig. 3). In ventral 

 view there can be seen two pale-yellow inwardly projecting 

 chitinous pieces given off from the more anterior part of the 

 triangle. 



