66 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND, 



with short silvery hairs, which become longer on cheeks, 

 but do not develop into a strong beard-like growth. Vertical 

 bristle large ; lateral vertical very small. 



Thorax grey, with three longitudinal black lines, of which 

 the middle one alone extends on to scutellum. Tip of scutellum 

 faintly golden. Lateral and vertical parts of thorax grey. Of 

 the acrostichals, only the prescutellar pair is present. Dorso- 

 centrals complete, the last pair just extending beyond 

 scutellum. Three well-developed humerals present. Apical 

 scutellar bristle present. Anterior spiracle dark chocolate 

 colour, with brown hairs. 



Legs black and grey. First femur slightly hairy proxi- 

 maUy ; ventral longitudinal row of bristles very complete ; 

 first tarsus not longer than tibia. Second femur slightly 

 hairy on proximal ventral half, " comb" developed ; second 

 tibia hairy ; tarsus a little longer than tibia. Third tibia 

 hairy ; tarsus nearly as long as tibia. Pulvilh brown, fringed 

 with delicate silver hairs. 



Abdomen a little longer than thorax, with the usual black 

 and silvery markings , the middle black Une not definite on 

 last segment. Short black reclinate bristles above, hairy 

 beneath. H3npopygium almost black, shiny, very hairy. 

 Forceps fairly straight, provided with a heavy growth of short 

 hairs on its upper half. Posterior connecting membrane very 

 feebly developed, though the forceps are approximated for 

 about two-thirds their length. Accessory plates triangular, 

 very dark broAMi, hairy ; claspers shiny black. The psnis 

 is probably to be regarded as of a much modified tuberosa 

 type ; the posterior ventral spine being present and the 

 anteriorly projecting chitinous bars represented by a pair of 

 somewhat slender, curved, non-bifurcated pieces of chitin. 

 Foliaceous chitin masses resembling those of S. misera var. 

 dux are present, but are produced ventrally each into a long 

 brown chitinous process. 



Female. — This differs from the male in the following 

 important characters : — Front shghtly wider than eyes ; an 

 inner row of nine frontal bristles present, an out3r of three, 

 of which the lowest is very large. Scutellum more abbreviated 

 than in male. Thoracic chsetotaxy as in male, except that last 

 pair of posterior dorsocentrals extend well beyond scutellum. 

 Scutellar apicals absent. 



